View source for Cut Content (Subnautica)

{{SubnauticaLink}}
{{Spoiler}}
This page serves to chronicle any significant content that was cut from the final version of ''[[Subnautica]].'' It features multiple cut tools, base structures, creatures, and items. All content is either unused and spawnable or removed.

==Alien Tech==
===Alien Data Terminal (Unused Variant)===
An unused version of the [[Alien Data Terminal]] with a more cyan hue. Where this would have been located is unknown, although it can be assumed that it would have functioned identically to the Orange and Green Terminals.

====Gallery====
<gallery widths="200" spacing="small">
Precursor_Computer_Variants.png|Alien Data Terminals, with the unused variant being the left-most one
</gallery>

===Ion Cube Matrix===
{{Craftable
|title1 = Ion Cube Matrix
|image4 = Ion Cube.png
|description = Ion cube matrix.
|size = 1
|debugspawn = ''precursorioncrystalmatrix''
}}An '''Ion Cube Matrix''' is a piece of technology that was originally planned to be used in the construction of the [[Neptune Escape Rocket]]. However, it was replaced with [[Ion Power Cell (Subnautica)|Ion Power Cell]]s. 

An Ion Cube Matrix would be crafted with five [[Ion Cube (Subnautica)|Ion Cube]]s.<ref>https://trello.com/c/ZCgdsR5Q/5769-rocket-overview</ref> While it can't be crafted, it can still be spawned with the [[Console Commands (Subnautica)|command]] <code>item precursorioncrystalmatrix</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
IonCrystalMatrix.jpg|Ion Cube Matrix model
ion cube matrix.png|An Ion Cube Matrix in-game
</gallery>

===Red Tablet===
{{Craftable
|title1 = Red Tablet
|image4 = RedKey.png
|description = Ancient alien tablet. Glows red.
|size = 1
|debugspawn = ''precursorkey_red''
}}The Red Tablet or Red Precursor Key is an unused Alien Tablet that was going to presumably deactivate forcefields. It visually depicts an R-shaped letter. It can be spawned using the command <code>item precursorkey_red</code>. It is also not scannable.{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
Red_Artifact.jpg|The Red Tablet
Pecursor_Symbol_01.png|The Symbol on the Red Tablet
red tablet.png|A Red Tablet found in-game</gallery>

===White Tablet===
{{Craftable
|title1 = White Tablet
|image4 = White_Artifact.png
|description = Ancient alien tablet. Glows white.
|size = 4 (2&times;2)
|debugspawn = ''precursorkey_white''
}}The White Tablet or White Precursor Key is an unused Alien Tablet that was previously intended to unlock the [[Alien Thermal Plant]]. The white tablet was a 4 (2&times;2) slot item, rather than a 1 slot item like all the other keys. It visually depicted a T-shaped or P-shaped letter. If one summons precursor keys in the developer menu, they will get a White Tablet and a Red Tablet. It can be spawned using the command <code>item precursorkey_white</code>.

The White Tablet was intended to be used as an integral story item for Subnautica's sequel, [[w:c:subnautica-belowzero:Subnautica: Below Zero|Subnautica: Below Zero]], but it was cut due to a story change.{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
White_Artifact.jpg|The White Tablet. 
Pecursor_Symbol_04.png|The Symbol on the White Tablet.
White tablet.png|A White Tablet found in-game.
</gallery>

==Biomes==
===Arctic===
The '''Arctic''' biome was never actually implemented into the game but was labeled and even put onto the maps found in the game's folder during early development. The biome stayed through development for a long time before it was eventually replaced and scrapped. Very few leftovers of this biome exist.

Inside the game files are multiple references to this biome, including old textures, biome ids, and even a cut [[Cut Content (Subnautica)#Cold Water|Cold Water]] effect.

If the biome is hacked into the game, a strange horn ambiance can be heard, which also appeared in other biomes in development at times. This was possibly just a placeholder ambiance. It also had a few music pieces attached to it. Under the Ice (later renamed to Maneuvers) was one of those tracks.

This biome likely inspired [[Subnautica: Below Zero|Subnautica: Below Zero's]] location.

====Gallery====
<gallery widths="200" spacing="small">
SnowyRocks.png|Rocks in the game files, snowy textures applied.
OldArcticNorth.png|Northern Arctic as seen on Maps.
OldArcticSouth.png|Southern Arctic as seen on Maps.
</gallery>

=== Crater Edge (OLD)===
The original version of the Crater Edge in the early access versions of [[Subnautica]] was very different from the final game. It was a mix of strange geometry to prevent the player from going further. However, it was replaced by the [[Crater Edge]] in later updates of the game. From the Earliest Access Phase of development, all the way up to either the December 2014 update or the January 2015 Update (Currently being fact checked), these anomalous walls were present around 2000 meters away from the center of the map, reaching up far too high to climb over, and upon teleporting past these walls there was nothing but empty ocean. This possibly might have been related to something Charlie Cleveland said during during GDC, that when coming up with ideas on how to prevent the player from escaping the boundaries of the world, one of the ideas was creating a giant wall of terrain to create a basin around the map. This might have been a prototype of that. Either during the December 2014 Update or the January 2015 Update (Being fact checked) these were later replaced by completely empty ocean.

====Gallery====
<gallery widths="200" spacing="small">
File:Subnautica Farlands.png|A screenshot of the walls of  "rocky" terrain that comprise the Farlands.
</gallery>

===Grand Reef (OLD)===
Though it is still in the game, some older cut content from the [[Grand Reef]] included terrain changes. Previously, massive spikes similar to those now found within the [[Crag Field]]. Also found in the biome were large crystals, which look highly similar to the large [[#Mercury Crystal|Mercury Crystal]] found in the [[#Entity Gallery|Entity Gallery]]. It is possible the crystals in the biome acted as block-outs for future placement of Mercury Crystals.

====Gallery====
<gallery widths="200" spacing="small">
GR Spikes.png|Large spikes present in early versions of the Grand Reef
GR Crystal.png|Large crystals present in early versions of the Grand Reef
</gallery>

===Lilypad Islands===
{{SubnauticaLinkThe|Lilypad Islands}}Floating in the water, the '''Lilypad Islands''' appears to be a biome of large lilypad structures rooted in medium-sized chunks of land. These Lilypads likely held the rocks in the water, keeping them afloat. This biome was likely replaced with the [[Underwater Islands]] biome, as it has the same properties as the Lilypad Islands.

The Lilypad Islands later went on to appear in [[w:c:subnautica-belowzero:Subnautica: Below Zero|Subnautica: Below Zero]] under the same name. 

====Gallery====
<gallery widths="200" spacing="small">
LilypadWaterIslands LowRes.jpg|The Lilypad Islands [[Concept Art]].
Lilypad Highpoly WIP.png|The top of a Lilypad.
Lilypad Islands Trunk Base 01 highpoly WIP.png|Lilypad Roots around a larger rock.
Lilypad Islands Trunk Base 02 highpoly WIP.png|Lilypad Roots around a smaller rock.
Lilypad Islands Trunk Bases WIP 02.png|An assortment of Lilypad Root Variants.
</gallery>

===Twisty Bridges===
{{SubnauticaLinkThe|Twisty Bridges}}The '''Twisty Bridges''' was a biome originally planned to be found in [[Subnautica]]. Development started as early as before the first early access release. Although some flora was made for the biome, it was left unfinished and eventually was cut from the game.

The biome was set to contain multiple cut items as well. The [[#Mohawk|Mohawk]] plant was one of the cut [[Flora]] found dotting the landscape. The [[Blue Barnacles (Subnautica)|Blue Barnacles]], which are still currently used in-game, were intended to line the bottoms of all the bridges. Both could be found in the [[#Entity Gallery|Entity Gallery]]. The biome appeared to have been very similar to the [[Safe Shallows]] in design, [[Fauna]], and Flora.

The biome was considered possible post 1.0 or expansion content but was instead included in [[w:c:subnautica-belowzero:Subnautica: Below Zero|Subnautica: Below Zero]].

It was the planned spawn of the [[Cuddlefish]], back when they were planned to be like [[Crashfish (Subnautica)|Crashfish]].

====Gallery====
<gallery widths="200" spacing="small">
Coral reef twisty bridges.jpg|Early Twisty Bridges models
Twist bridges 1.jpg|Early blockout of the biome
Twistybridgesold.png|Twisty bridges seen in an early development build
EntGal2.png|The [[Blue Barnacles (Subnautica)|Blue Barnacles]] found in the [[#Entity Gallery|Entity Gallery]]
MohawkEntGal.png|The [[#Mohawk|Mohawk]] found in the [[#Entity Gallery|Entity Gallery]]
Community-Page-Header.jpg|Twisty Bridges [[Concept Art]]
</gallery>

==Commands==
===Entity Gallery===
The '''Entity Gallery''' was a series of textureless, white boxes that could be spawned by typing "entgal" into the console. On top of each box, an entity from the world of ''Subnautica'' could be found. Of the various things found here, the models of the scrapped "[[#Sandworm|Sandworm]]" and "[[#Grab Crab|Grab Crab]]" creatures were perhaps the most notable.

The Entity Gallery's removal may have been due to the multiple occasions in which [[Precursor Race|Precursor]] objects were mistakenly added to the gallery; This resulted in Precursor objects and [[Alien Bases|bases]] being revealed to the public long before they were intended to be. The most wellknown example of this was [[Experimental Mode|Experimental Update]] Version 46346, the "Skittles Update," in which many of the game's textures were converted to multicolored squares. This was because the game had gone over the limit of textures by the accidental addition of the [[Quarantine Enforcement Platform]] model and several other Precursor props to the gallery.

Running the command <code>entgal</code> would spawn in the Entity Gallery near the center of the map and teleport the [[Ryley Robinson|player]] to it.

====Gallery====
<gallery widths="200" spacing="small">
EntGal0.png|A [[#Grab Crab|Grab Crab]].
EntGal1.png|A [[Reaper Leviathan]] and a [[Reefback Leviathan]].
EntGal2.png|Some [[Blue Barnacles (Subnautica)|Blue Barnacles]].
EntGal3.png|Different kinds of [[Coral]] and grass.
EntGal4.png|Some Metal Debris found in the [[Crash Zone]].
EntGal5.png|All props from the [[Aurora|Aurora Wreckage]].
EntGal6.png|Two trees, now found on the [[Floating Island]].
EntGal7.png|A [[#Sand Worm|Sand Worm]].
EntGal8.png|Early [[Wrecks|Wreckage]] and other random items.
EntGal10.png|A very early version of the [[Prawn Suit (Subnautica)|Prawn Suit]].
</gallery>

===Leak===
The '''Leak''' command was originally intended to create new leaks in a Cyclops. However, as [[#Cyclops Flooding|Cyclops Flooding]] was removed from the game, it no longer does anything. It was executed with the command <code>leak</code>.

===Lock===
The '''Lock''' command was the opposite of the [[Console Commands (Subnautica)|unlock]] command. It was intended to lock blueprints that were already unlocked. For example, the command <code>lock solarpanel</code> would've locked the recipe for a [[Solar Panel (Subnautica)|Solar Panel]]. The command was removed for an unknown reason, and it was run by typing <code>lock [NAME]</code>.

===Seal===
The '''Seal''' command would have set the player's speed to a 5x multiplier. This was removed along with the ability to change speed not long before the [[Update History (Subnautica)#Early Access Release|Early Access Release]]. It was run by typing the command <code>seal</code>.

===Shark===
The '''Shark''' command would have set the player's speed to a 10x multiplier. This was removed along with the ability to change speed not long before the [[Update History (Subnautica)#Early Access Release|Early Access Release]]. It would've been accessed by running the command <code>shark</code>

===Sonic===
The '''Sonic''' command would have set the player's speed to a 50x multiplier. This was removed along with the ability to change speed not long before the [[Update History (Subnautica)#Early Access Release|Early Access Release]]. It could've been run by typing the command <code>sonic</code>

==Coral==
===Brain Coral Small===
These cut '''Brain Coral Small''' appear to have been a relative to the [[Brain Coral]] added in-game. It is unknown if they would have functioned similarly to the [[Brain Coral]], or if this was simply a placeholder name with no relation.

====Gallery====
<gallery widths="200" spacing="small">
Brain Coral Small.png
</gallery>

===Dead Brain Coral===
'''Dead Brain Coral''' is a cut form of Brain Coral from older versions. The coral would change to this white form when hit by the [[Survival Knife (Subnautica)|Survival Knife]] several times, similar to dead coral found in Earth's oceans. The coral would stop producing oxygen when dead.

This effect is still present in [[Coral Shell Plate|Slanted Shell Plate]] and [[Bulb Bush|Giant Bulb Bush]]

====Gallery====
<gallery widths="200" spacing="small">
BrainCoralDead.jpg|Dead Brain Coral in the [[Safe Shallows]]
</gallery>

===Reefback Coral 01===
The '''Reefback Coral 01''' is an unused type of [[Reefback Leviathan]] Coral set to appear on its back. It is unknown why this coral remains unused as it is fully modeled and textured.

====Gallery====
<gallery widths="200" spacing="small">
Unused Reefback Coral.png
</gallery>

==Deployables==
===Current Generator===
{{Craftable
|title1 = Current Generator
|image4 = Currentgenerator.png
|description = Generates strong current
|size = 4 (2&times;2)
|debugspawn = ''currentgenerator''
}}The '''Current Generator''' was a [[Deployables|deployable]] crafted using the [[Fabricator (Subnautica)|Fabricator]]. The Current Generator took up four slots in the player's [[PDA|Inventory]], meaning the player could carry twelve of them in a clear inventory. The Current Generator used no power and could be left active indefinitely.

Once the device was deployed and activated, it would produce a column-shaped hydro-current from an emitter on its front. This stream could push small and large objects alike, including [[Lifepod 5]] and the [[Reefback Leviathan]]. However, the [[Seamoth]] and [[Cyclops]] were not affected by the Current Generator.

The Current Generator has been scrapped and is no longer available in the game. This could be to the fact that it would create lag and/or loading problems. At the time, it could've been obtained using the command <code>item currentgenerator</code>, or spawned using <code>spawn currentgenerator</code>

====Gallery====
<gallery widths="200" spacing="small">
Current Generator Front.jpg|Front
Current Generator (1).jpg|Back
Current Generator (4).jpg|Current Generators generating currents
Current Generator (5).jpg|Current Generator being used as a way to quickly move through a giant [[Giant Coral Tubes|Giant Coral Tube]] in the [[Safe Shallows]]
Current Generator (3).jpg|Many Current Generators being used as a barrier to keep predators away
</gallery>

==Eggs==
===Biome Eggs===
The '''Biome Eggs''' are cut items in Subnautica. It is unknown what they would've been used for, or what their purpose was. All that is currently known about them is that they would've been identified with the [[Cut Content (Subnautica)#Specimen Anylizer|Specimen Analyzer]], somehow. They can still be obtainable through [[Console Commands (Subnautica)|Console Commands]], but serve no function.

====Bulb Zone Egg====
{{Craftable
|title1 = Bulb Zone Egg
|image4 = Koosh Zone Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''kooshzoneegg''
}}The '''Bulb Zone Egg''' was a generic egg found within the [[Bulb Zone]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item kooshzoneegg</code> {{Clear}}

====Grand Reef Egg====
{{Craftable
|title1 = Grand Reef Egg
|image4 = Grand Reefs Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''grandreefsegg''
}}The '''Grand Reef Egg''' was a generic egg found within the [[Grand Reef]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item grandreefsegg</code> {{Clear}}

====Grassy Plateaus Egg====
{{Craftable
|title1 = Grassy Plateaus Egg
|image4 = Grassy Plateaus Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''grassyplateausegg''
}}The '''Grassy Plateaus Egg''' was a generic egg found within the [[Grassy Plateaus]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item grassyplateausegg</code>. {{Clear}}

====Kelp Forest Egg====
{{Craftable
|title1 = Kelp Forest Egg
|image4 = Kelp Forest Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''kelpforestegg''
}}The '''Kelp Forest Egg''' was a generic egg found within the [[Kelp Forest]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item kelpforestegg</code>. {{Clear}}

====Lava Zone Egg====
{{Craftable
|title1 = Lava Zone Egg
|image4 = Lava Zone Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''lavazoneegg''
}}The '''Lava Zone Egg''' was a generic egg found within the [[Inactive Lava Zone|Lava Zone]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer.]] It could have been spawned with the command <code>item lavazoneegg,</code> however in the full release, using the command instead gives the player a Lava Lizard egg that cannot hatch and has the appearance of a Lava Zone Egg.{{Clear}}





====Mushroom Forest Egg====
{{Craftable
|title1 = Mushroom Forest Egg
|image4 = Mushroom Forest Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''mushroomforestegg''
}}The '''Mushroom Forest Egg''' was a generic egg found within the [[Mushroom Forest]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item mushroomforestegg</code>. {{Clear}}

====Safe Shallows Egg====
{{Craftable
|title1 = Safe Shallows Egg
|image4 = Safe Shallows Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''safeshallowsegg''
}}The '''Safe Shallows Egg''' was a generic egg found within the [[Safe Shallows]] that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item safeshallowsegg</code>. {{Clear}}

====Twisty Bridges Egg====
{{Craftable
|title1 = Twisty Bridges Egg
|image4 = Twisty Bridges Egg.png
|description = An unidentified egg.
|size = 1
|debugspawn = ''twistybridgesegg''
}}The '''Twisty Bridges Egg''' was a generic egg found within the Twisty Bridges that would've been identified with the cut [[#Specimen Analyzer|Specimen Analyzer]]. It can be spawned with the command <code>item twistybridgesegg</code>. {{Clear}}

===Reefback Leviathan Egg===
{{Craftable
|title1 = Reefback Leviathan Egg
|image4 = Spadefish Egg.png
|description = Incredibly, Reefbacks hatch from these.
|size = 9 (3&times;3)
|debugspawn = ''reefbackegg''
}}The '''[[Reefback Leviathan]] Egg''' is an unused egg that hatches an extremely small Reefback Leviathan when placed in containment. The model for this egg is shared with [[Spadefish]] Egg, which can be found in-game.



They were never implemented into the game, and are only spawnable with [[Console Commands (Subnautica)|Console Commands]]. It can be spawned in still using the command <code>item reefbackegg</code>.{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
Eggs (7).png|The Reefback Leviathan Egg's full model, shared with the [[Spadefish]] Egg.
</gallery>

===Shuttlebug Egg===
{{Craftable
|title1 = Shuttlebug Egg
|image4 = Shuttlebug Egg.png
|description = Shuttlebugs hatch from these.
|size = 1
|debugspawn = ''jumperegg''
}}The '''[[Shuttlebug]] Egg''' is an egg that was never implemented into the game. It hatches into a Shuttlebug when in containment. The model and icon used by this egg were once shared by the [[Crabsnake]] egg. It is spawnable using the console command <code>item jumperegg</code>. This egg, as well as the Reefback Leviathan egg, can be found in the Primary Containment Facility's Egg Laboratory. {{Clear}}



====Gallery====
<gallery widths="200" spacing="small">
Screenshot 2020-05-23 at 20.05.30.png|The Shuttlebug egg in the Primary Containment Facility
</gallery>

==Electronics==
===Lithium Ion Battery===
{{Craftable
|title1 = Lithium Ion Battery
|image4 = Battery.png
|description = High capacity battery.
|size = 1
|debugspawn = ''lithiumionbattery''
}}The '''Lithium Ion Battery''' was an upgrade to the [[Battery (Subnautica)|Battery]], crafted using a [[Modification Station (Subnautica)|Modification Station]]. The Lithium Ion Battery held twice as much [[energy]] as the Battery. The Lithium Ion Battery can only be crafted in Creative Mode, unlocked using the command <code>unlock lithiumionbattery</code> and crafted at the Modification Station in any game mode, or obtained using the command <code>item lithiumionbattery</code>.



If in creative or unlocked using commands, the Lithium Ion Battery will appear in a fully unique section of the Modification Station. This section has its own icon that matches all of the others in the Modification Station and appears nowhere else.

The [[Ion Battery (Subnautica)|Ion Battery]] is the replacement for this upgraded battery. It uses an [[Ion Cube (Subnautica)|Ion Cube]] instead of [[Lithium (Subnautica)|Lithium]] to be crafted and has 500 power, whilst the Lithium Ion Battery has 200. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
LithiumIonBatteryCrafting.png|The Lithium Ion Battery in a special menu of the [[Modification Station (Subnautica)|Modification Station]].
</gallery>

===Nanowires===
{{Craftable
|title1 = Nanowires
|image4 = Nanowires.png
|description = Wires for nanoscale quantum devices.
|size = 1
|debugspawn = ''nanowires''
}}'''Nanowires''' were a nano-scale [[Electronics|Electronic]] item crafted from [[#Mercury Ore|Mercury Ore]] that was intended for quantum devices and sensors. It can be spawned using the command <code>item nanowires</code> {{Clear}}

==Environmental==
===Arctic Obstacles===
====Cold Water====
'''Cold Water''' was less of a physical object and more of a status effect. When in Cold Water, the [[Ryley Robinson|player's]] breathing would become ragged, depleting oxygen faster than normal. The player would also take damage if not properly protected using anything that provides Cold Resistance<ref name=Document2 />.

In the game files, assets for this effect exist. When spawned in-game, they will instantly kill the player and display a bright blue effect, simulating cold damage. In older versions, it could be spawned using the command <code>spawn cold</code>, but it can no longer be spawned. This effect was likely to appear in the [[#Arctic|Arctic]] biome.

=====Gallery=====
<gallery widths="200" spacing="small">
ColdOverlay.png|The cold water effect overlay.
</gallery>

====Ice Spikes====
'''Ice Spikes''' would grow downwards inside the [[#Arctic|Arctic]] biome, forming [[#Ice Patches|Ice Patches]] in the surrounding area. These would inflict cold damage if not properly protected<ref name=Document2 />.

These have been repurposed for [[Subnautica: Below Zero|Subnautica:Below Zero]].

====Ice Patches====
'''Ice Patches''' were patches of frozen ground that had less friction. [[Prawn Suit (Subnautica)|Prawn Suit]]s and terrestrial [[Fauna]] would have been at risk of slipping and sliding across the ground. These patches of ice were to have appeared in the [[#Arctic|Arctic]] biome<ref name=Document2 />.

===Lava Obstacles===
====Falling Spires====
'''Falling Spires''' are currently located in the [[Inactive Lava Zone]], however, they do not hold the same purpose they do now. In early development, these spires would have been affected by vibrations. If they were damaged enough, they would have collapsed and fallen over. These would only do crush damage<ref name=Document2>https://docs.google.com/spreadsheets/d/1Wxd1vELgoKfrSOnen65mnb5d5DAn7RtyUSd5ymy4JQ4/edit?usp=sharing</ref>.

====Lava Bridges====
For bottom-dwelling [[Fauna]] and [[Prawn Suit (Subnautica)|Prawn Suit]]s, '''Lava Bridges''' could prove dangerous. These bridges were weak connectors over large chasms and lava pits. However, if disturbed too heavily these bridges would collapse, dealing damage to the player, creatures, or vehicles. These would have extensively been used in the Lava Zone<ref name=Document2 />.

====Lava Sinkholes====
'''Lava Sinkholes''' were large holes in the seabed found in the Lava Zone with an odd, almost bubble-like object in the center. After some time, these bubbles would burst, erupting outwards violently and inflicting damage<ref name=Document2 />.

A single sinkhole exists within the [[Inactive Lava Zone]] known as the [[Inactive Lava Zone#Lava Pit|Lava Pit]]. It is purely decorative and does not have any of the features mentioned above.

Similar is included in [[Subnautica: Below Zero|Subnautica:Below Zero]], albeit in smaller size.

=====Gallery=====
<gallery widths="200" spacing="small">
Pat-presley-subnautica-lavazone-tumulus-final.jpg|Lava Sinkhole Concept<ref name=Document2 />.
</gallery>

===Ocean Currents===
====Currents====
'''Currents''' would have acted as moving water that would push items around, such as small [[Fauna]], or possibly even the [[Ryley Robinson|player]]. They could be found in different places, including caves. They are often diurnal, sometimes nocturnal. This idea was likely to work into the [[#Current Generator|Current Generator]] before it was eventually cut as well<ref name=Document2 />.

====Water Streams====
'''Water Streams''' were a type of Ocean Current that would be much weaker than normal. They are smaller and are easier to swim through. They were to be considered universal, found in multiple places around the map<ref name=Document2 />.

====Whirlpools====
'''Whirlpools''' were designed to suck the player in and down. They would either block progression slightly, sucking the player away from locations and downwards, or they would pull the player down into aggressive fauna. These could occur anywhere but were intended to be very noticeable<ref name=Document2 />.

===Physical Rocks===
'''Physical Rocks''' were simple obstacles that were able to shift and move when vibrations occurred. They would also set off any motion-sensing triggers. Smaller ones could be picked up as items<ref name=Document2 />.

===Silt===
Sitting on the seabed, '''Silt''' acted as loose particles that, when interacted with by a creature or object, would obscure vision and become disturbed. The silt was usually located in caves, making it harder to visibly traverse them<ref name=Document2 />. 

===Weather===
One of the most highly requested features throughout development, '''Weather''' was a system that was planned but never developed fully. The timing and different technical aspects of what weather would have been are unknown. It is confirmed that there were at minimum two main weather conditions and some wind effects, as heard in the sound files which can be played below.

The two moons of [[Planet 4546B]] would drastically affect the timing, severity, and type of weather. Some known types of weather were rain, snow, lightning storms (with ranging severity), and tsunamis. The worse the weather was, the harder it was to traverse the area underwater<ref name=Document2 />.

Weather was eventually recycled for [[Subnautica: Below Zero]], which has intense lightning storms, rainstorms, and snow.
Weather is mentioned in one of [[Sunbeam]]’s transmissions.

====Sounds====
{| class="article-table sortable" style="width: 100%;" cellspacing="1" cellpadding="1" border="0"
|-
! class="unsortable" style="width: 50%; text-align: center;" |Weather Effect
! class="unsortable" style="width: 50%; text-align: center;" |Audio
|-
| style="text-align:center; font-size:12px;" |Rain Loop
| style="text-align:center; font-size:12px;" |[[File:RainLoop1.ogg]]
|-
| style="text-align:center; font-size:12px;" |Thunder Loop
| style="text-align:center; font-size:12px;" |[[File:ThunderLoop1.ogg]]
|-
| style="text-align:center; font-size:12px;" |Wind Effects Light (One)
| style="text-align:center; font-size:12px;" |[[File:WindLight1.ogg]]
|-
| style="text-align:center; font-size:12px;" |Wind Effects Light (Two)
| style="text-align:center; font-size:12px;" |[[File:WindLight2.ogg]]
|-
| style="text-align:center; font-size:12px;" |Wind Effects Heavy (One)
| style="text-align:center; font-size:12px;" |[[File:WindHeavy1.ogg]]
|-
| style="text-align:center; font-size:12px;" |Wind Effects Best Wind
| style="text-align:center; font-size:12px;" |[[File:BestWind.ogg]]
|}

====Gallery====
<gallery widths="200" spacing="small">
Lightning.png|Lightning seen in the Jiaolong Build Test Video<ref name=Jiaolong>https://www.youtube.com/watch?v=q2-1Zhl5FVQ</ref>.
Rain.png|Rain seen in the Jiaolong Build Test Video<ref name=Jiaolong />.
X_rain_01.png|A ring of rain that would wrap around the player, found in the game files.
X_lightning_01.png|Cloud-to-ground lightning found in the game files.
X_lightning_02.png|Cloud lightning found in the game files.
</gallery>

==Equipment==
===Thermometer===
{{Craftable
|title1 = Thermometer
|image4 = Thermometer.png
|description = HUD temperature sensor.
|size = 1
|debugspawn = ''thermometer''
}}The '''Thermometer''' was a piece of [[equipment]] that allowed the player to see the temperature at their current location. It was crafted with a single [[Computer Chip (Subnautica)|Computer Chip]].

It was removed because it was hard to implement into the latest HUD, and was rarely used during gameplay, which rendered it not worth keeping.<ref>http://imgur.com/a/Oiu3a</ref>

Its removal was made more apparent by the addition of built-in thermometers on vehicle HUDs ([[Seamoth]], [[Prawn Suit (Subnautica)|Prawn Suit]], and [[Cyclops]]). While it can be spawned using the command <code>item thermometer</code>, it will only appear as though you obtained it; nothing will appear within the inventory, indicating it's been blacklisted. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
20161126031424_1.jpg|Thermometer's HUD in the lower left corner of the screen, appearing blue when in a cold area
20161121031756_1.jpg|Thermometer turning green when the player is in an area that's between hot and cold
20161126031843_1.jpg|Thermometer turning yellow when the player in a semi hot area
20161126031159_1.jpg|Thermometer turning red when the player is in a very hot area
</gallery>

==Fauna==
===Bloom Plankton===
[[File:Bloomplankton-1.png|thumb|150px]]
Bloom Plankton are a small fauna species that were never implemented in the game, but can be spawned with "''spawn bloom''". According to the game files, it was meant to spawn in the Tree Cove in the Lost River. Bloom Plankton is found only in groups and usually invisible, only becoming visible when they are "charged" with light. Their color can be altered by shining different types of light onto them. Shining a [[Flashlight (Subnautica)|Flashlight]] into a group of Bloom Plankton will cause them to glow bright white; if a flare is thrown near a group of Bloom Plankton they will glow red. This color will be retained for a brief moment before going invisible again.

When charged, they become a light source and will light up their surroundings. This could be used to the [[Player|Player's]] advantage to navigate in dark areas.
When charged with light, Bloom Plankton will constantly shift and move amongst each other.
Bloom Plankton will swarm around light sources and stay near it.

ID: <code>bloom</code>

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
BloomPlanktonTorch.jpg|Bloom Plankton charged with light from a [[Flashlight (Subnautica)|Flashlight]]
BloomPlanktonFlare.jpg|Bloom Plankton charged with light from a [[Flare (Subnautica)|Flare]]
</gallery>

===Bullet Fish===
References to a '''Bullet Fish''' have been found in the game files. Its behavior is quite similar to that of a [[Crashfish (Subnautica)|Crashfish]]. The Bullet Fish would hide in a hole, waiting for the player to come in range. It would then quickly shoot out of the hole and begin to chase the player. If the fish manages to get close enough to the player, it would take 10 seconds worth of their oxygen. The fish would then swim back into the hole. The creature never received a final model and was eventually cut from the game.

===Grabcrab===
[[File:GrabCrabCut1.png|right|150px]]
The '''Grabcrab''' was a [[Fauna]] that would leave its home to grab food and items. The Grabcrab Home, however was never finished, and is merely seen as a placeholder. The Grabcrab was not spawnable in-game but has been noted to have appeared in both early development footage and the [[#Entity Gallery|Entity Gallery]]. It's behaviour is similar to the [[Sea Monkey]]s from [[Subnautica: Below Zero|Subnautica:Below Zero]].

The Grabcrab had sounds found in the game files of [[Subnautica]]. They can be played on the chart below. Though it cannot be spawned, it's ID is <code>grabcrab</code>.

====Sounds====
{{SoundTable|
{{str|Grabcrab idle1|Idle 1}}
{{str|Grabcrab idle2|Idle 2}}
{{str|Grabcrab idle3|Idle 3}}
{{str|Grabcrab pickup|Pickup}}
{{str|Grabcrab putdown|Put Down}}
{{str|Grabcrab scare|Scare}}
}}

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
CaveThingLarge.jpg|Concept Art for the Grab Crab
GrabCrabEarliest.png|A Grab Crab added in Build 9<ref>https://trello.com/c/3ClVQT30/955-grabcrab-grabs-items-it-sees-and-puts-in-a-pile</ref>
GrabCrabSeabed.png|The Grab Crab seen in the seabed during the Pisces Playtest<ref>https://www.youtube.com/watch?v=OVYeZ6uYcVA&feature=youtu.be</ref>
GrabCrabEntGal.png|The Grab Crab seen in the [[#Entity Gallery|Entity Gallery]]
</gallery>

===Grower===
Referenced in the game files, the '''Grower''' was a simple creature that was never implemented. There is no model or texture for this creature, only a script. The creature was intended to simply grow and shrink in size, as well as pulse. There is no other known information on this creature.

===Large Bird===
[[File:Large Bird.png|right|150px]]
This unnamed bird was dubbed the '''Large Bird''' by many. This bird was featured in the ''Subnautica Early Access Trailer'' and is seen flying along with a flock of [[Skyray (Subnautica)|Skyray]]s. However, even though the bird had a completed model, it was never put into the game.

The Large Bird was planned to be featured in [[Subnautica: Below Zero]] as the [[w:c:subnautica-belowzero:Cut Content#Dragonfly|Dragonfly]], but was cut due to the decision that more fauna would be unnecessary.

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
Dragonfly.jpeg|Large Bird (Dragonfly) Concept Art
Large Bird Trailer.png|Large Bird as seen in the [[Update History (Subnautica)#Early Access Release|{{subst:#if:Subnautica Early Access Trailer|Subnautica Early Access Trailer|Update History}}]]
Skyray and Large Bird.jpeg|A comparison of the Large Bird and a [[Skyray (Subnautica)|Skyray]]
</gallery>

===Reefback Leviathan Cut Features===
At one point in development, [[Reefback Leviathan]]s were planned to be able to burrow near the surface of the seafloor. [[Flora]], [[Coral]], and other small creatures would eventually establish themselves on top of the dormant Leviathans. If five or more moderate-sized creatures were too close, the Reefback Leviathans would become disturbed. They would slowly rise out of the ground and drift to a quieter place to rest<ref name=Documents />.

Reefback Leviathans were also planned to be rideable. Originally, the [[Ryley Robinson|Player]] was intended to have the ability to grab the Leviathan's tentacles, trailing behind the leviathan as it swam, but this concept was scrapped.<ref name=Documents />.

=== Reginald Cut Features ===
The Reginald was once a large herbivore, about the size of a gasopod, although it was still pickupable. It was later changed to be much smaller. The reason for this change was unknown.

According to the model's default scale, and the concept art of the Reginald, it was always intended to be a small fish.<gallery>
File:LargeReginalds.jpg
</gallery>

===Rock Puncher===
{{SubnauticaLinkThe|Rock Puncher}}[[File:Rock Puncher Fauna.png|right|150px]]
The '''Rock Puncher''' was one of the most developed cut creatures. It had a complete model, working animations, and worked in-game. However, it was never added and was eventually cut entirely.

The Rock Puncher was to originally appear as a creature that would punch into rocks and terrain using its large appendages that closely resemble boxing gloves. It has six legs and could walk in all directions. The [[Rockgrub (Subnautica)|Rockgrub]] was originally referenced as a ''Rock Puncher Larva'', then ''Rock Puncher Food'', before finally keeping it as Rockgrub, implying a relation between the two creatures. 

The Rock Puncher was later reused for [[w:c:subnautica-belowzero:Subnautica: Below Zero|Subnautica: Below Zero]]. Though no longer spawnable, it's ID is <code>rockpuncher</code>.

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
Hi-Res Rock Puncher Concept Art.jpg|Rock Puncher Concept Art
Fauna 2 Fox3D.png|Rock Puncher in a Fox3D Showcase, along with a [[Reaper Leviathan]], [[Boneshark]], and [[Stalker]]
unspecified.jpg|Subnautica Fauna Sheet that featured the Rock Puncher
SFAB Rock Puncher.png|The Rock Puncher's full model
Rock puncher vs human2.jpg|A size comparison to the [[Ryley Robinson|Player]]
</gallery>

===Sand Worm===
[[File:SandWormCut1.png|right|150px]]
The '''Sand Worm''' was a scrapped creature used for testing purposes. The Sand Worm made use of a premade model the devs acquired for the creature's body, and the model of the [[Tree Leech]] for the creature's burrow. The Sand Worm had simple behaviors, detecting when something was above the creature's burrow and jumping out, dealing rapid damage. It appeared in the [[#Entity Gallery|Entity Gallery]].

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
EntGal7.png|The Sand Worm as seen in the [[#Entity Gallery|Entity Gallery]]
EntGalExtra.png|Sand Worm from the Top Down in the [[#Entity Gallery|Entity Gallery]]
</gallery>

===Sea Dragon Seamoth Animation===
The '''Sea Dragon Seamoth Animation''' was a cut attack animation made for the [[Sea Dragon Leviathan]] in which it would grab the [[Seamoth]] and put it into its mouth in an attempt to crush the vehicle, similar to the existing animation for the [[Prawn Suit (Subnautica)|Prawn Suit]].

This animation was ultimately cut from the game due to being pointless, as the Seamoth's max depth was insufficient to reach the [[Inactive Lava Zone]] where the Sea Dragons reside so this animation would never occur in normal gameplay.

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
SeaDragonLeviathan12.jpg|A [[Sea Dragon Leviathan]] holding a [[Seamoth]]
SeaDragonLeviathan13.jpg|A [[Seamoth]] being pulled in
SeaDragonLeviathan14.jpg|A [[Seamoth]] inside the mouth of a [[Sea Dragon Leviathan]]
SeaDragonLeviathan15.jpg|A [[Sea Dragon Leviathan]] placing a [[Seamoth]] in its mouth
SeaDragonLeviathan16.jpg|The inside of the [[Sea Dragon Leviathan|Sea Dragon Leviathan's]] Mouth
</gallery>

===Slime===
The '''Slime''' was a supposedly hazardous fauna meant to "Encourage you to explore at different times". This scrapped concept is only mentioned in a developer document<ref name=Document2 /> as well as referenced in-game files. No other information is known about its purpose. The Slime was spawnable through the ID <code>slime</code> in early builds of Subnautica. 

The creature was non-interactable, resembling an unfinished, pulsating, organic sphere. There is no official model, texture, or programmed AI for this creature. In current builds the placeholder model, ambient animation, and spawn command are absent. It is only obtainable through item commands as a placeholder item under the name. Unused audio events under the name of "slime_killed" and "slime_stick" still exist within the game today.

====Gallery====
<gallery position="left" widths="200" spacing="small" captionalign="left">
SlimeCreature.png|An image of the Slime
SlimePulsating.gif|The Slime, pulsating and shifting
SlimeSizeRef.png|The Slime with a Size Reference present
</gallery>

=== Trident ===
The Trident is a creature with little known about it outside of two very early development cards, which state that they were being prototyped using the "Shark" model<ref>https://trello.com/c/GFimhDAP/882-prototype-trident-with-shark</ref>, and that they would be able to knock items out of the player's inventory<ref>https://trello.com/c/I3EuMT0p/546-tridents-knock-items-out-of-your-inventory</ref>. There are three files in the code related to it: Trident, TridentHole, and TridentHome. They do not use the same system as most other creatures, and they do not use the FMOD audio system, which implies they were added ''very'' early in development, perhaps not long after the first protoypes. Either that, or it was a quick test that did not go much further.

Every Trident would have had a home. The home itself would have had two holes. When one of these holes was approached by the player, the Trident would come out of its home and make a swim from the hole it came out of to the other. When approached again, it would return back to the other holle. When it touched the player, it would have pushed the player away with significant force and potentially knock items out of their inventory. It did not deal any damage.

According to the FMOD event paths, the Stalker actually uses the audio that was originally meant for the Trident fish (event:/creature/trident/).

===SnoozeBall===
Little is known about the SnoozeBall, other than it at one time was represented by a [[Bulb Bush|Medium Bulb Bush]] model, with code related to it being a copy of the code for [[Gas Pod]]s.

==Flora==
===Hanging Seaweed===
'''Hanging Seaweed''' was intended to be found around the [[Safe Shallows]], and was simply seaweed that would hang over cliffs and off objects. There was no known use for them. They were likely only decoration for the area<ref>https://trello.com/c/cQTLIFcZ/1480-coralreefhangingseaweed</ref>

====Gallery====
<gallery widths="200" spacing="small">
CoralReefHangingSeaweed.jpg|Hanging Seaweed seen on the Trello.
EntityGalleryHangingSeaweed.png|Hanging Seaweed found in the [[#Entity Gallery|Entity Gallery]]
</gallery>

===Mohawk===
{{SubnauticaLinkThe|Scaly Maw Anemone}}
The '''Mohawk''' was a cut plant planned to be part of the cut [[#Twisty Bridges|Twisty Bridges]] biome. These plants featured a curved shape, lined with fibers. At one point in development, a Mohawk could be found in the [[Jellyshroom Cave]]. While it was still in the game, the [[#Entity Gallery|Entity Gallery]] contained four variants of the Mohawk.

It can still be spawned using commands. If the command <code>spawn mohawk</code> is used, the mohawk will spawn sideways. If instead the command <code>item mohawk</code> is used, it will spawn upright.

These plants later appeared in the [[w:c:subnautica-belowzero:Twisty Bridges|Twisty Bridges]] biome in [[Subnautica: Below Zero]], however, now under the name [[w:c:subnautica-belowzero:Scaly Maw Anemone|Scaly Maw Anemone]].

====Gallery====
<gallery widths="200" spacing="small">
Mohawk Variants.png|Mowhawk variants.
MohawkEntGal.png|Mohawk as seen in the [[#Entity Gallery|Entity Gallery]].
MohawkConcept.png|Mohawk as featured in the Twisty Bridges Concept Art.
</gallery>

===Plant Middle 11===
'''Plant Middle 11''' is a cut plant that appears to be a collection of different blades. These plants were reskinned and implemented into [[Subnautica: Below Zero]].

====Gallery====
<gallery widths="200" spacing="small">
Plant Middle 11.png
</gallery>

===Spike Trap===
{{SubnauticaLinkThe|Spikey Trap}}[[File:Spiky Trap.png|right|150px]]
The '''Spike Trap''' was a cut [[Flora|flora]] that was intended to grab onto the player from below and pull them inwards. They would do this using the four, orange tipped, white tendrils attached to the main body. It would have dragged the [[Ryley Robinson|player]] in towards its large mouth seen at the center.

Because of the presence of a Spike Trap Seed icon, the Spike Trap could have been planted and grown on [[Exterior Growbed (Subnautica)|Exterior Growbed]]s. It is unknown if this would have provided extra uses.

The Spike Trap later appeared in [[Subnautica: Below Zero]] as a recolored variant with a slightly different name, the [[w:c:subnautica-belowzero:Spikey Trap|Spikey Trap]].

====Gallery====
<gallery widths="200" spacing="small">
Spike Trap Concept Art.jpg|Concept Art for the Spike Trap.
Spike Trap.png|The icon of a Spike Trap.
Spike Trap Seed.png|The icon of a Spike Trap Seed.
Spike Trap (1).jpg|The Spike Trap seen in-game.
Spike Trap (2).jpg|Close up of the Spike Trap's mouth.
</gallery>

===Stitchgrass===
'''Stitchgrass''' was intended to be a special plant that, when interacted with, would provide healing to nearby creatures. The [[Ryley Robinson|player]] could use this plant to heal wounds, but using it too much in a short period time would kill it, no longer being able to heal. Stitchgrass could be found in almost any biome.<ref name=Document2 />

===Unnamed Flora===
This '''Unnamed Flora''' appears to be a [[Bioluminescence|Bioluminescent]] plant. It is made up of multiple fibers stretching upward, with tips that seem to glow a bright white.

====Gallery====
<gallery widths="200" spacing="small">
Unknown Grass.png
</gallery>

==Game Mechanics==
===Composting===
'''Composting''' was a mechanic that was used to obtain [[#Ethanol|Ethanol]] and Composted Materials, such as [[#Compost Creepvine|Compost Creepvine]]. This process likely would have involved placing plant matter into a [[#Composter|Composter]] and allowing it to compost over time, then collecting materials and Ethanol. A similar process could have been done with [[#Fertilizer|Fertilizer]], which would convert Ethanol into [[#Ethylene|Ethylene]]<ref name=Documents />.

===Cyclops Flooding===
In earlier versions of the game, the [[Cyclops]] would flood upon being damaged. This would have created leaks in the Cyclops' interior, which could have been repaired with a repair tool. The Cyclops would flood overtime, and after reaching a certain amount of water, would begin to sink to the seabed.

This feature was likely replaced with the newer mechanics due to the way it made the Cyclops invulnerable, as damage could easily be repaired and the cyclops was never really at risk.

Below is a video demonstration of the mechanic from a prototype test in 2014, which is almost exactly how it appeared in game.

====Gallery====
<gallery position="center" widths="400" spacing="small" captionalign="center">
Subnautica Prototype Flooding Demonstration
</gallery>

===Dialogue===
Throughout [[Subnautica|Subnautica's]] development, there have been multiple instances of '''Dialogue''', some of which have been cut, unused or updated and the old versions removed. The [[Dialogue (Subnautica)#Cut/Unused Dialogue|Dialogue]] page contains all cut and unused Dialogue found in the game files.

===Durability===
During early access, '''Durability''' was a mechanic associated with all variants of the regular [[Survival Knife (Subnautica)|Survival Knife]]. After a set number of strikes, a knife would be destroyed, requiring the player to craft a new one. The Survival Knife had 100 durability, the [[Thermoblade (Subnautica)|Thermoblade]] had 34 and the [[#Hardened Blade|Hardened Blade]] had 200. The mechanic was removed along with the now-pointless Hardened Blade.

=== Objectives ===
Originally Subnautica was planned to have objectives. This was originally seen in Prototype 5, and would last for a while through development. However this was ultimately scrapped before Earliest Access was launched. Objectives also appeared in the Pax East 2014 demo.

- Prototype 5 (Known) Objectives: Find Computer, Get Dive Suit, Get Metal, Craft Tank, Craft Neoprene, Craft Flippers, Craft Knife, Get Kelp, Craft Battery, Craft Seajet, Craft Flashlight, Craft Bathysphere, Dive to 250 feet, Construct First Sub, Craft Welder, ~???

- Prototype 6 (Known) Objectives: Find Computer, Get Dive Suit, Get Metal, Craft Tank, Craft Neoprene, Craft Flippers, Craft Knife, Get Kelp, Craft Battery, Craft Seajet, Craft Flashlight, Craft Bathysphere, Dive to 250 feet, Construct First Sub, Craft Welder, ~??? (Due to First Sub not being craftable in this build, it is impossible to complete Construct First Sub objective.)

===Overeating===
During development, '''Overeating''' was a mechanic that would occur after the consumption of too many [[Food & Water|food]] items. If too many were eaten, the Overeating effect would occur, in which the [[Ryley Robinson|player]] would begin to lose health due to blood loss¹. The only food item exempt from this was the [[Gel Sack (Subnautica)|Gel Sack]]. The message "blood loss detected" was a reference to one of the HEV suit damage warnings from ''Half-Life''.

Upon eating too much, you are first warned of the impending complications that eating more will bring. If eating continues, the player would start to lose blood and take damage, which the [[PDA]] would notify you of.

====Sounds====
{| class="article-table sortable" style="width: 100%;" cellspacing="1" cellpadding="1" border="0"
|-
! class="unsortable" style="width: 20%; text-align: center;" |
! class="unsortable" style="width: 20%; text-align: center;" |Trigger
! class="unsortable" style="width: 60%; text-align: center;" |Dialogue
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Overeating slightly
| style="text-align:left; font-size:12px;" |"Warning: without variety in your diet, your fluid and nutrient levels will decrease."
[[File:OvereatingWarning3.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Overeating too much
| style="text-align:left; font-size:12px;" |"Warning: blood loss detected."
[[File:BloodLoss.ogg]]
|}

=== Submarine Autopilot ===
Originally Submarines were planned to feature Autopilot. This was shown within the prototypes and some concept art. You could open a map and select a location, and the autopilot would run on it's own whilst you walked around the submarine. This was likely cut due to the complexity and changes with Submarine controls.

===Terrain Generation===
In [[Subnautica|Subnautica's]] early development, '''Terrain Generation''' was a planned feature. It would have worked by developing tile sets to randomly generate a certain biome. Using the Voxel Terrain system, these tile sets would have meshed together into a world that would be explorable. It is currently known that there were tile sets for the [[Inactive Lava Zone|Lava Zone]]<ref>https://trello.com/c/yksb5q4P/1133-complete-lava-bridge-merge-tile-set</ref>, [[Safe Shallows]], [[Kelp Forest]]<ref>https://trello.com/c/PIpBWbt5/84-add-kelp-tiles-to-pisces-world</ref>, [[Mushroom Forest]] and [[Bulb Zone]]<ref>https://trello.com/c/pgD8Hu80/16-koosh-zone-and-danger-reef-tile</ref>.

====Gallery====
<gallery widths="200" spacing="small">
SafeShallowsTileSetPreviewOne.jpg|A preview of the [[Safe Shallows]] tile set
SafeShallowsTileSetPreviewTwo.png|A second preview of the [[Safe Shallows]] tile set
SafeShallowsTileSetPreviewThree.png|A third preview of the [[Safe Shallows]] tile set
SafeShallowsTileSetPreviewFour.png|A fourth preview of the [[Safe Shallows]] tile set
SafeShallowsTileSetOne.png|A group of tiles from the [[Safe Shallows]] tile set
SafeShallowsTileSetTwo.png|Another group of tiles from the [[Safe Shallows]] tile set
File:Kelptiles.PNG|A preview of the [[Kelp Forest]] tile set
MushroomForestTileSetPreview.jpg|A preview of the [[Mushroom Forest]] tile set
LavaCastleTileOne.jpg|A tile from the [[Inactive Lava Zone]] tile set
LavaCornerTileOne.png|Another tile from the [[Inactive Lava Zone]] tile set
Open 9 broken.png|A broken tile set segment from the [[Safe Shallows]]<ref>https://trello.com/c/4Cb98sQx/1492-serious-bug-with-applying-changes-to-tile-prefabs</ref>
File:FunnieLava.jpg|Another set of Lava Zone tiles.
File:BulbTileset.png|A few examples of Bulb Zone tiles.
</gallery>

== Loot Distribution ==
The game has had many changes to loot distribution and creature spawn locations. Some, but not all, are listed below.

=== Blood Kelp Zone ===

* Alien Containment fragment
* Cyclops pressure compensator fragment
* Mercury Ore

=== Bulb Zone ===

* Alien Containment Fragment
* Stillsuit Fragment
* Vehicle Upgrade Console Fragment

=== Crag Field ===

* Mercury Ore

=== Crash Zone ===

* Vehicle Upgrade Console Fragment

=== Deep Grand Reef ===

* Alien Containment Fragment
* Vehicle Upgrade Console Fragment (around the Degasi Seabase)

=== Dunes ===

* Vehicle Upgrade Console Fragment
* Mercury Ore (in caves)
* Stillsuit Fragment

=== Grand Reef ===

* Alien Containment Fragment
* Cyclops pressure compensator Fragment
* Jellyray
* Mercury Ore

=== Grassy Plateaus ===

* Stillsuit Fragment

=== Jellyshroom Caves ===

* Jellyray

=== Kelp Forest ===

* Bleeder

=== Lost River ===

* Hoopfish

=== Mountains ===

* Crystalline sulfur
* Stillsuit Fragment

=== Mushroom Forest ===

* Vehicle Upgrade Console Fragment

=== Sea Treader's Path ===

* Alien Containment Fragment
* Mercury Ore (in caves)
* Stillsuit Fragment

=== Sparse Reef ===

* Crystalline sulfur
* Mercury Ore

=== Lost River Tree Cove ===

* Bloom Plankton
* Crabsquid

==Materials==
===Amino Acid===
{{Craftable
|title1 = Amino Acid
|image4 = Amino Acid.png
|description = Protein and neurotransmitter building block.
|size = 1
|debugspawn = ''aminoacids''
}}'''Amino Acid''' was an unimplemented [[Raw Materials (Subnautica)|raw material]]. It was used to create [[#Graphene|Graphene]]. It can be spawned in game using the command <code>item aminoacids</code>. {{Clear}}

===Battery Acid===
{{Craftable
|title1 = BatteryAcidOld
|image4 = Unknown.png
|description = Tooltip_BatteryAcidOld
|size = 1
|debugspawn = ''batteryacidold''
}}'''Battery Acid''' (named ''BatteryAcidOld'' when spawned in game) was a craftable substance likely used while crafting [[Battery (Subnautica)|Batteries]]. Not much else is known about this substance. It can be spawned using the command <code>item batteryacidold</code>. {{Clear}}

===Calcium===
{{Craftable
|title1 = Calcium
|image4 = Calcium.png
}}'''Calcium''' was a craftable resource that was used in the production of [[Bleach]] and was made from [[Coral Tube Sample]]s. It has now been replaced by [[Coral Tube Sample]]s in the recipe for bleach.

====Recipe====
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Coralchunk.png|54px|link=Coral Tube Sample]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|linkFabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Calcium.png|54px|link=#Calcium]]</span>

====Uses in Crafting====
=====Fabricator=====

<div class="mw-collapsible mw-collapsed"> 
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Calcium.png|54px|link=#Calcium]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Salt_OLD.png|54px|link=Salt Deposit]]</span>
<span class="inventory" style="font-size:150%;vertical-align:middle;margin: 3px;">&times;'''5'''</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|link=Fabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Bleach_OLD.png|54px|link=Bleach]]</span>
</div>
<br />{{Clear}}

===Carbon===
{{Craftable
|title1 = Carbon
|image4 = Carbon.png
|description = For batteries, organic building block
|size = 1
|debugspawn = ''carbon''
}}'''Carbon''' was a substance that changed a few times before it eventually was cut. First, it was crafted by refining either plant matter or [[#Calcite|Calcite]]<ref name=Documents />. In later development, this recipe was changed to require three [[Acid Mushroom]]s before it was eventually cut. It was primarily used to craft Batteries.

In old versions of the game, Carbon could be obtained by slashing a [[Stalker]] with a [[Survival Knife (Subnautica)|Survival Knife]]. It isn't fully known why this occurred or if it was intentional. While it can no longer be spawned in the most recent versions of Subnautica, the ID is <code>carbon</code>.

====Recipe====
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Purple Mushroom.png|54px|link=Acid Mushroom]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Purple Mushroom.png|54px|link=Acid Mushroom]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Purple Mushroom.png|54px|link=Acid Mushroom]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|linkFabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Carbon.png|54px|link=#Carbon]]</span>

====Uses in Crafting====

<div> 
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Carbon.png|54px|link=#Carbon]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Zinc.png|54px|link=#Zinc]]</span>
<span class="inventory" style="font-size:150%;vertical-align:middle;margin: 3px;">&times;'''5'''</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|link=Fabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Lithium Ion Battery.png|54px|link=Battery]]</span>
</div>
<br />{{Clear}}

===Compost Creepvine===
{{Craftable
|title1 = Compost Creepvine
|image4 = Compost Creepvine.png
|description = Breaks down Creepvine over time for reliable energy
|size = 1
|debugspawn = ''compostcreepvine''
}}'''Compost Creepvine''' is not a substance, but instead an action. After the original Bioreactor was added in, the player could Compost Creepvine using three [[Creepvine Sample (Subnautica)|Creepvine Sample]]s and a [[Tree Mushroom]] Sample. It can be spawned in using the command <code>item compostcreepvine</code>, but has absolutely no purpose.

Before the Bioreactor was added in, Compost Creepvine was likely an item planned to be created from a [[#Composter|Composter]], as it has a spawnable item. The use likely switched long before Early Access when the Composter was removed.

====Recipe====
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Compost Creepvine.png|54px|link=Creepvine Sample]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Compost Creepvine.png|54px|link=Creepvine Sample]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Compost Creepvine.png|54px|link=Creepvine Sample]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Mushroom Tree Piece.png|54px|link=Fungal Sample]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Bioreactor-0.png|54px|link=#Bioreactor (Old)]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Compost Creepvine.png|54px|link=#Compost Creepvine]]</span>{{Clear}}

===Emery===
{{Craftable
|title1 = Emery
|image4 = Emery.png
|description = For cutting, drilling, abrasive
|size = 1
|debugspawn = ''emeryold''
}}'''Emery''' (known as EmeryOld when spawned in game) was a material planned to be found in Subnautica. Not much is known about it other than the fact that it was obtainable through limestone outcrops and was used to craft the Survival Knife, and possibly the [[#Drill|Drill]]. It is able to be spawned in using the console command <code>item emeryold</code>. {{Clear}}





===Ethanol===
{{Craftable
|title1 = EthanolOld
|image4 = Unknown.png
|description = Tooltip_EthanolOld
|size = 1
|debugspawn = ''ethanolold''
}}Acting as Vehicle Fuel, '''Ethanol''' (known as ''EthanolOld'' when spawned in game) was intended to be used in the crafting of Ethylene and the powering of different [[Vehicles]]. It was to be made at a Composter from decaying/decomposing plant matter<ref name=Documents />. It can be spawned in game using the command <code>item ethanolold</code>. {{Clear}}

===Ethylene===
{{Craftable
|title1 = EthyleneOld
|image4 = Unknown.png
|description = Tooltip_EthyleneOld
|size = 1
|debugspawn = ''ethyleneold''
}}Not much is known about '''Ethylene''' aside from the fact it was used to stimulate and ripen fruit, cause flowers to bloom, and allowed leaves to shed<ref name=Documents />. Using the command <code>item ethyleneold</code> will spawn it in. {{Clear}}

===Flint===
{{Craftable
|title1 = Flint
|image4 = Flint.png
|description = For sparks and fire
|size = 1
|debugspawn = ''flintold''
}}'''Flint''' was a raw material used for crafting [[Flare (Subnautica)|Flare]]s. It was generally found in the [[Safe Shallows]], [[Kelp Forest]], and [[Grassy Plateaus]]. The command <code>item flintold</code> allows it to be obtained in the final game. In older versions of the game, it is simply <code>item flint</code>.

====Uses in Crafting====
=====Fabricator=====

<div class="mw-collapsible mw-collapsed"> 
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Magnesium OLD.png|54px|link=#Magnesium]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Flint.png|54px|link=#Flint]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Flint.png|54px|link=#Flint]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|link=Fabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Flare_OLD.png|54px|link=Flare]]</span>
</div>
<br />

====Gallery====
<gallery widths="200" spacing="small">
SeabedFlint.png|Flint found on the ocean floor
</gallery>{{Clear}}

===Graphene===
{{Craftable
|title1 = Graphene
|image4 = Graphene.png
|description = C. Carbon arranged one atom thick. Stronger than steel.
|size = 1
|debugspawn = ''graphene''
}}'''Graphene''' was a material that was crafted at the [[Fabricator (Subnautica)|Fabricator]] using [[#Carbon|Carbon]]. It can be spawned in using the command <code>item graphene</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">Graphene (1).jpg|Graphene being crafted in the [[Fabricator (Subnautica)|Fabricator]] in an early build of Subnautica</gallery>

===Hydrogen===
{{Craftable
|title1 = HydrogenOld
|image4 = Unknown.png
|description = Tooltip_HydrogenOld
|size = 1
|debugspawn = ''hydrogenold''
}}'''Hydrogen''' (named ''HydrogenOld'' when spawned) was a gas-like substance used in crafting. Hydrogen was used to craft three [[Flare (Subnautica)|Flare]]s. To obtain Hydrogen, an [[#Electrolizer|Electrolizer]] would have been used. [[#Calcium|Calcium]] would produce Hydrogen when placed in water. It can be spawned in using the command <code>item hydrogenold</code>. {{Clear}}

===Lodestone===
{{Craftable
|title1 = Lodestone
|image4 = Unknown.png
|description = Tooltip_Lodestone
|size = 1
|debugspawn = ''lodestone''
}}'''Lodestone''' is an unknown material, only defined by its ID. It does not appear to spawn in-game, and no information can be found on it in any documentation. Since "lodestone" is the name given to a naturally magnetized sample of [[Magnetite (Subnautica)|Magnetite]], it was probably a precursor to that material. Using the command <code>item lodestone</code>, it may be spawned in. {{Clear}}

===Magnesium===
{{Craftable
|title1 = Magnesium
|image4 = Magnesium.png
|description = Mg. Combustible metal.
|size = 1
|debugspawn = ''magnesium''
}}'''Magnesium''' was a material crafted using three [[Salt Deposit (Subnautica)|Salt Deposit]]s in the Fabricator. Magnesium was only used in two crafting recipes, that of the [[Repair Tool (Subnautica)|Repair Tool]] and [[Flare (Subnautica)|Flare]]. As it was only used in a few recipes it was rendered useless and was removed. It can be spawned with the command <code>item magnesium</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
magnesiumdropped.png|Magnesium in-game
</gallery>

===Membrane===
{{Craftable
|title1 = Membrane
|image4 = Membrane.png
|description = For straining liquids
|size = 1
|debugspawn = ''membrane''
}}'''Membrane''' was a material obtained from [[Membrain Tree]]s. It was originally planned to be used in the crafting of water, but eventually was removed and replaced by the [[Bladderfish (Subnautica)|Bladderfish]] in its sole recipe. It can no longer be spawned in, but the ID is <code>membrane</code>. {{Clear}}

===Mercury Crystal===
{{Craftable
|title1 = Mercury Crystal
|image4 = Mercury.png
}}'''Mercury Crystal''' was a raw material planned to be used in crafting. It was a rare substance used in [[#Thermometer|Thermometers]], Barometers, Manometers, Sphygmomanometers, float valves, Mercury Switches, Mercury Relays, and Fluorescent Lamps. This ore was intended to be found at the border of Volcanic and Crystal biomes<ref name=Documents />. It was only able to be found in the [[#Entity Gallery|Entity Gallery]] on [[Update History (Subnautica)#Early Access Release|Early Access Release]], but could spawn in earlier development builds. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
EntGal9.png|A large Mercury Crystal found in the [[#Entity Gallery|Entity Gallery]], likely intended to act as an Ore Deposit. 
Mercury (01).jpg|Early Mercury Crystal found in the [[Deep Sparse Reef]].
Mercury (02).jpg|Early Mercury Crystal found in the [[Grand Reef]]
Mercury Ore (1).jpg|Mercury Crystal on the Seabed.
Mercury Ore (2).jpg|Mercury Crystal located in the [[Grassy Plateaus]].
</gallery>

===Mercury Ore===
{{Craftable
|title1 = Mercury Ore
|image4 = Mercury Ore.png
|description = HgS. Cinnabar. Heat in O<sub>2</sub> to acquire refined mercury.
|size = 1
|debugspawn = ''mercuryore''
}}'''Mercury Ore''' (or '''Cinnabar''' in some builds) was an uncommon material found in various biomes that was used solely to craft the [[Cyclops Fire Suppression System]] before being replaced by [[Crystalline Sulfur (Subnautica)|Crystalline Sulfur]]. It then remained in game until the full release, when it was finally cut.

Mercury Ore spawned in multiple biomes, including the [[Crag Field]], the [[Deep Grand Reef]], the [[Grand Reef]], the [[Sea Treader's Path]], the [[Sea Treader's Tunnel Caves]], and the [[Sparse Reef]]. It can be obtained with the command <code>item mercuryore</code>.
{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
mercury ore in game.png|Mercury Ore on the seabed.
Mercury.jpg|Mercury Ore found on a rockface.
MercuryLarge.png|A Mercury Ore Outcropping.
</gallery>

===Metal===
Metal was going to be very similar to [[Titanium (Subnautica)|Titanium]]. It would have been crafted with 1 [[Metal Salvage (Subnautica)|Metal Salvage]]. It was replaced by [[Titanium (Subnautica)|Titanium]].


===Neoprene===
{{Craftable
|title1 = Neoprene
|image4 = Unknown.png
}}'''Neoprene''' was a substance crafted using [[#Zinc|Zinc]] at a [[Fabricator (Subnautica)|Fabricator]]. It was used to craft [[Fins (Subnautica)|Fins]], [[Survival Knife (Subnautica)|Knives]], Dive Tools, a Hammer, [[Repair Tool (Subnautica)|Welders]], [[Seaglide (Subnautica)|Seaglides]], and [[Flare (Subnautica)|Flare]]s. The specifics of this substance is unknown<ref name=Documents />. {{Clear}}



===Opal gem===
{{Craftable
|title1 = Opal gem
|image4 = Unknown.png
|description = Si. A gem of concentrated silicon.
}}'''Opal gem''' was likely a naturally spawning resource in very early builds of the game. The existence of it is only proven by language files.{{Clear}}

===Rutile===
{{Craftable
|title1 = Rutile
|image4 = Rutile.png
}}'''Rutile''' was a natural resource that existed in the early builds of Subnautica. It was originally used to craft [[Titanium (Subnautica)|Titanium]]. It did not spawn naturally and had to be spawned in through [[Console Commands (Subnautica)|Console Commands]]. It is no longer in game.{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
Rutileinearlybuild.png|Rutile in early build
</gallery>

===Sand===
{{Craftable
|title1 = Sand
|image4 = Subnautica_Sand.png
|description = Tooltip_SandLoot
|size = 1
|debugspawn = ''sandloot''
}}Before terraforming was removed, you could dig '''Sand''' in the environment. It would be used to create [[Glass (Subnautica)|Glass]] and [[Silicone]]. It was the only substance that could be dug without the use of a [[#Terraformer|Terraformer]]. Upon dropping, it will produce a particle effect. The sand item was removed before the dig feature, making it unobtainable. It is still spawnable in game using the command <code>item sandloot</code>.{{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
SandFalling.gif|Sand particles falling when dropped
</gallery>

===Uranium===
{{Craftable
|title1 = Uranium
|image4 = Uranium.png
|description = U. Nuclear fission applications.
|size = 1
|debugspawn = ''uranium''
}}'''Uranium''' was an item belonging to the Advanced Materials category that was removed in the ''[[Update History (Subnautica)#Voice of the Deep|Voice of the Deep]]'' update. It was at first found as a raw material from deposits, and later became a crafted material made using three [[Uraninite Crystal (Subnautica)|Uraninite Crystal]]s, and was used in the crafting of [[Reactor Rod (Subnautica)|Reactor Rod]]s and several Electronic items. Uranium was removed to simplify the Reactor Rod recipe<ref>https://trello.com/c/r05j96pZ</ref>. It can still be spawned in game using the command <code>item uranium</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
Uranium (2).jpg|Uranium's model in-game
</gallery>

===Zinc===
{{Craftable
|title1 = Zinc
|image4 = Zinc.png
|description = For electrodes and galvanization
|size = 1
}}In early builds, '''Zinc''' could be obtained from [[Limestone Outcrop (Subnautica)|Limestone Outcrop]]s and Stalagmites. It was primarily used for crafting batteries, but was also involved in the crafting of [[#Neoprene|Neoprene]]<ref name=Documents />.

====Uses in Crafting====
=====Fabricator=====

<div class="mw-collapsible mw-collapsed"> 
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Carbon.png|54px|link=#Carbon]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Zinc.png|54px|link=#Zinc]]</span>
<span class="inventory" style="font-size:150%;vertical-align:middle;margin: 3px;">&times;'''5'''</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Fabricator_OLD.png|54px|link=Fabricator]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Arrow-right_(1).png]]</span>
<span class="arrow-icon" style="display: inline-block; margin: 3px; vertical-align:middle;">[[File:Lithium Ion Battery.png|54px|link=Battery]]</span>
</div>
<br />

====Gallery====
<gallery widths="200" spacing="small">
SeabedZinc.png|Zinc found on the ocean floor
</gallery>{{Clear}}

==Modules==
===Cyclops Pressure Compensator===
{{Craftable
|title1 = Cyclops Pressure Compensator
|image4 = Chelonian Hull Reinforcement Module.png
|description = Increases safe diving depth by providing dedicated computational power for the ship's hull stabilizers.
|size = 1
|debugspawn = ''hullreinforcementmodule''
}}The '''Cyclops Pressure Compensator''' was an Upgrade Module for the Cyclops. When put into the Cyclops upgrade panel, it added 900 meters to both the safe and crush depth, which would stack if multiple copies were equipped. It and the two upgraded versions below were cut and replaced with the non-stacking Cyclops Depth Modules. Just before being cut the description was altered, indicating there may have been some plans to retain the Pressure Compensator. Works in game but has no icon, and can be spawned with the command <code>item hullreinforcementmodule</code>. 

Even in current versions of the game, although only with external game modifications, an object can be spawned which has the same ID as the Cyclops Pressure Compensator. It appears it was meant to be constructable with the Habitat Builder, inside a Cyclops or Seabase. When constructed, it would have increased the crush depth by 200 meters. It could also take damage and be repaired, with it only having 100 max health. It could have been unlocked by scanning fragments in the Blood Kelp Zone or Grand Reef.

The buildable object does not have a properly setup model and does not function at all.<gallery>
File:CyclopsPressureCompensator.png|Cyclops pressure compensator built in a Cyclops
</gallery>{{Clear}}



===Shell Hull Reinforcement Module===
{{Craftable
|title1 = Shell Hull Reinforcement Module
|image4 = Shell Hull Reinforcement Module.png
|description = Hull reinforcement module built using Reefback shell structure
|size = 1
|debugspawn = ''hullreinforcementmodule2''
}}The '''Shell Hull Reinforcement Module''' was an [[Upgrade Modules|Upgrade Module]] for the [[Cyclops]]. When used to upgrade the Cyclops, it added 1600 meters to both the safe depth and the crush depth. This item was removed when the new, non-stacking upgrade system was introduced. Works in game but has no icon, and can be spawned in using the command <code>item hullreinforcementmodule2</code>. {{Clear}}

===Chelonian Hull Reinforcement Module===
{{Craftable
|title1 = Chelonian Hull Reinforcement Module
|image4 = Chelonian Hull Reinforcement Module.png
|description = Hull reinforcement module built using advanced Reefback chelonian cellular structure
|size = 1
|debugspawn = ''hullreinforcementmodule3''
}}The '''Chelonian Hull Reinforcement Module''' added 2800 meters to both the safe depth and the crush depth. It was the strongest reinforcement module. To create the module, blueprints from the [[#Specimen Analyzer|Specimen Analyzer]] were required as [[Reefback]] [[DNA]] was part of the recipe. This item was removed when the new, non-stacking upgrade system was introduced, along with the removal of DNA samples. Works in-game but has no icon, and can be spawned using the command <code>item hullreinforcementmodule3</code>. {{Clear}}

==Ore Deposits==
===Aluminium Oxide Deposit===
The '''Aluminium Oxide Deposit''' was an ore deposit that was intended to give [[Ruby (Subnautica)|Aluminium Oxide]] (which was renamed to the [[Ruby (Subnautica)|Ruby]] later in development) upon being drilled. It was never implemented. However, this has been repurposed for [[Subnautica: Below Zero]].

====Gallery====
<gallery widths="200" spacing="small">
AluminumOxideLarge.png
</gallery>

===Diamond Deposit===
'''Diamond Deposits''' were intended to drop [[Diamond (Subnautica)|Diamond]]s when mined. They were never implemented into the game. However, this has been repurposed for [[Subnautica: Below Zero]].

====Gallery====
<gallery widths="200" spacing="small">
DiaomndLargeDepositNewTable.png
</gallery>

===Mercury Deposit===
'''Mercury Deposits''' were cut along with [[Cut Content (Subnautica)#Mercury Ore|Mercury Ore]]. They were findable in most places Mercury Ore was located.

====Gallery====
<gallery widths="200" spacing="small">
MercuryLarge.png
</gallery>

===Sulfur Deposit===
'''Sulfur Deposits''' originally were intended to drop [[Crystalline Sulfur (Subnautica)|Crystalline Sulfur]] when broken. They were likely intended to be found under the brine in the [[Lost River]].

====Gallery====
<gallery widths="200" spacing="small">
SulphurLarge.png
</gallery>

==Outcrops==
===Basalt Outcrop===
[[File:BasaltOutcrop.png|thumb|85x85px]]
Basalt Outcrops were a common outcrop type that spawned in many biomes, and looked very similar to the [[Shale Outcrop]]. They dropped [[Gold (Subnautica)|Gold]], [[Diamond (Subnautica)|Diamond]], and [[Uraninite Crystal (Subnautica)|Uraninite Crystal]]s. They received a final model and why they were removed is not fully known. Its model was reused as the Galena Outcrop in [[Subnautica: Below Zero]].
Basalt Outcrops spawned in the following biomes:
* [[Blood Kelp Caves]]
* [[Blood Kelp Zone]]
* [[Bulb Zone]]
* [[Bulb Zone Caves]]
* [[Crag Field]]
* [[Deep Grand Reef]]
* [[Grand Reef]]
* [[Lava Geyser]]
* [[Mountain Island]]
* [[Mountains Caves]]
* [[Mushroom Forest]]
* [[Sea Treader's Path]]
* [[Sea Treader's Tunnel Caves]]
* [[Underwater Islands]]

ID: <code>basaltchunk</code>

====Gallery====
<gallery widths="200" spacing="small">
Basalt chunk in game.png|A Basalt Outcrop found in the [[Crag Field]]
Basalt3.jpg|A Basalt Outcrop found in the [[Bulb Zone]]
</gallery>

===Calcite===
'''Calcite''' acted as both an outcrop and a material. When broken up it would drop Calcium, but would also allow harvesting of the chunks for other uses. These uses included Cements, Fertilizers, Metals, Glass, Rubber, and Paint<ref name=Documents />. Though unable to be spawned, it's ID is <code>calciteold</code>

====Gallery====
<gallery widths="200" spacing="small">
Stalagmite.png|A Calcite Stalagmite spawned in the Kelp Forest.
</gallery>

===Dolomite===
'''Dolomite''' was a harder and denser type of outcrop. It would drop [[Copper Ore (Subnautica)|Copper Ore]] when harvested. It also had the possibility of giving Gasses or Oil<ref name=Documents />. Though it cannot be spawned in, it's ID is <code>dolomiteeold</code>.

===Obsidian Outcrop===
[[File:Obsidian Chunk.png|thumb|85x85px]]
Obsidian Outcrops were [[Harvesting Nodes]] found in the Lava Zones, they dropped only [[Diamond (Subnautica)|Diamond]] and never received a final model. They spawned in the [[Inactive Lava Zone]], the [[Inactive Lava Zone Corridor]], the [[Lava Castle]], and the [[Lava Lakes]]. It can still be spawned in-game with the command <code>spawn obsidianchunk</code>

====Gallery====
<gallery widths="200" spacing="small">
obsidian chunk in-game.png|An Obsidian Outcrop spawned in the Safe Shallows
</gallery>

===Rocks===
'''Rocks''' were small outcrops that spawned in the [[Mushroom Forest]]. They usually dropped [[#Magnesium|Magnesium]], although they had a small chance to drop [[Copper Ore (Subnautica)|Copper Ore]].

====Gallery====
<gallery widths="200" spacing="small">
Rock outcrop.png|A rock found in the [[Mushroom Forest]].
</gallery>

==PDA==
===Minimap===
Featured on old development documentation<ref name=Documents>https://docs.google.com/document/d/1kd4YTHJz2K4ERdGRfJB-8M7_32Q23clIBRqEMrLmysk/edit#</ref>, the '''Minimap''' was a planned feature for the game. This would have worked by tracking areas you had been and displaying them on the Minimap as mapped terrain. This feature appears to have been cut long before any playable version of the game was finished.

====Gallery====
<gallery widths="200" spacing="small">
Minimap background.jpg|Minimap as seen on a lone [[PDA]]
PDA hand.jpg|Minimap being used by the [[Ryley Robinson|Player]]
</gallery>

===Scanning System (Old)===
The '''Scanning System''' in older documentation<ref name=Documents /> detailed some differences. Upon looking directly at an object for multiple seconds, a short description of the item would appear on the [[HUD]]. These messages would only appear if they had not been shown in the last ten messages during the current play session.

If objects were scanned with a [[Scanner (Subnautica)|Scanner]], they would both display their short description no matter how long since it had been seen, as well as unlock an optional longer version. These were likely similar to the [[Databank (Subnautica)|Databank]] entries in the game currently.

===Signals===
[[File:Signal.png|right|64px]]
Even though they are still in the game, [[Signals]] have gone through many changes. The most prominent was a move from items to being on their own [[PDA]] page. Before they had a custom tab (which is between the Inventory and Log tabs) they were items you could find in chests and containers, or were given when a radio signal was obtained.

In early development, Signals were simply found in either chests or containers, and they usually lead to simple places. Some led to caves, others to certain locations. [[Lifepod 5]] was the only one that was on at all times and needed no object to work. These Pings would be equipped either by holding them in your hand or placing them in the Chip Slots.

During early development, these Pings appeared as simple white blips that would expand and fade. There was no way to edit them at all, and they would simply give a location. Before they were given an icon, they appeared in the world as placeholder white "X" markers. They were eventually given a final design image before being cut and changed into the item-less system.

Below is a compilation of all cut Signal Locations from the game. Some locations were cut from the game entirely, while others remained but lost any pings related to them.

====Signal Locations====
{| class="article-table sortable" style="width: 100%;" cellspacing="1" cellpadding="1" border="0"
|-
! class="unsortable" style="width: 10%; text-align: center;" |
! class="unsortable" style="width: 30%; text-align: center;" |Signal Name
! class="unsortable" style="width: 30%; text-align: center;" |Co-ordinates
! class="unsortable" style="width: 30%; text-align: center;" |Information
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Lifepod 4 (Shallows)
| style="text-align:center; font-size:12px;" |717 -7 161
| style="text-align:center; font-size:12px;" |[[Radiation Suit]] recommended before attempting rescue/salvage.
[[File:Lifepod 4 Audio.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Lifepod 6 (110m)
| style="text-align:center; font-size:12px;" |363 -110 309
| style="text-align:center; font-size:12px;" |Crew requested assistance surviving radiation.
[[File:Lifepod 6 Audio.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Lifepod 7 (180m)
| style="text-align:center; font-size:12px;" | -55 -179 -1039
| style="text-align:center; font-size:12px;" |Aurora crewmember requested assistance.
[[File:Lifepod 7 Audio.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Possible Cave Opening
| style="text-align:center; font-size:12px;" | -172 -64 -221
| style="text-align:center; font-size:12px;" |Leads to the [[Jellyshroom Cave]]s.
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Possible Cave Opening
| style="text-align:center; font-size:12px;" | -127 -520 -266
| style="text-align:center; font-size:12px;" |Unreachable without a [[Cut Content (Subnautica)#Terraformer|Terraformer]], leads nowhere.
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Possible Cave Opening
| style="text-align:center; font-size:12px;" | 741 -182 573
| style="text-align:center; font-size:12px;" |Leads to a large cave under the [[Mushroom Forest]].
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Heat Signature
| style="text-align:center; font-size:12px;" | -390 -1125 76
| style="text-align:center; font-size:12px;" |Leads to the [[Inactive Lava Zone]].
|-
| style="text-align:center; font-size:12px;" |[[File:Signal Ping.png|80px]]
| style="text-align:center; font-size:12px;" |Large organic mass
| style="text-align:center; font-size:12px;" | -1028 -273 -1116
| style="text-align:center; font-size:12px;" |Leads to the entrance of the [[Deep Grand Reef]].
|}

====Gallery====
<gallery widths="200" spacing="small">
Signal (2).jpg|An older Signal found in a [[Supply Crate (Subnautica)|Supply Crate]]
Signal (3).jpg|An old Signal model
Signal (5).jpg|Old Signal locations on the [[HUD]]
Signal (4).jpg|Old Signals placed in the Chip Slots
Signal.png|The last Signal item icon before it was cut
</gallery>

==Placeable Items==
===INFINITE Poster===
{{Craftable
|title1 = INFINITE Poster
|image4 = poster6.png
}}Little is known about the '''INFINITE Poster''' other than it exists. There is no known spawn ID. The origins of this poster are also unknown.

====Gallery====
<gallery widths="200" spacing="small">
poster6.png|INFINITE Poster Full Image.
</gallery>

===Green Cap===
The '''Green Cap''' exists in the texture files for the [[Caps]], hinting at some point there was another cap and sunglasses. It is unknown if these textures were ever planned to have a use, or if these are simply leftovers from an original texture taken from elsewhere (possibly Natural Selection 2).

====Gallery====
<gallery widths="200" spacing="small">
Cap.jpg|The texture for the Green Cap and sunglasses alongside the other 2 Caps
</gallery>

==Seabases==
===Accumulator===
{{Craftable
|title1 = Accumulator
|image4 = Accumulator.png
|description = Stores power.
|debugspawn = ''accumulator''
|category = [[Energy]]
}}The '''Accumulator''' was a machine meant to store power for [[Seabases (Subnautica)|Seabases]]. The Accumulator's model is very similar to those used by the old [[#Bioreactor (Old)|Bioreactor ]] and the old [[#Thermal Plant (Old)|Thermal Plant]]. It is unknown why it was cut. While it can no longer be spawned, a placeholder item with a very brief description can be spawned with <code>item accumulator</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
Accumulator1.png|The Accumulator
AccumulatorSeafloor.png|An Accumulator placed on the seafloor
AccumulatorGUI.png|The GUI of the Accumulator, showing how much (out of fifty) power is stored
</gallery>

===Bioreactor (Old)===
{{Craftable
|title1 = Bioreactor (Old)
|image4 = BioreactorOLD.png
|description = Composts plant matter into energy (40 power/min)
|tab = Power
|debugspawn = ''bioreactor''
|category = [[Energy]]
}}The old '''Bioreactor''' was built outside of a base and could only be powered using [[Fungal Sample]]s and [[Creepvine Sample (Subnautica)|Creepvine Sample]]s, unlike the more recent [[Bioreactor (Subnautica)|Bioreactor]] which can use any organic material. It uses a model that is highly similar to the [[#Accumulator|Accumulator]] and the old [[#Thermal Plant (Old)|Thermal Plant]]. It is no longer spawnable{{Clear}}



====Gallery====
<gallery widths="200" spacing="small">
OldBioreactorFront.png|The Bioreactor, Front View
OldBioreactorSide.png|Ditto, Side View
Bioreactor 4.jpg|Two Bioreactors placed just outside a small habitat
Bioreactor 3.jpg|The GUI of the Bioreactor, in which [[#Compost Creepvine|Composting Creepvine]] provides power
</gallery>

===Botanical Analysis Machine===
{{Craftable
|title1 = Botanical Analysis Machine
|image4 = Botanical Analysis Machine.png
|tab = [[Interior Modules]]
}}The '''Botanical Analysis Machine''' was a machine meant to study [[Flora]]. It was cut when the [[Scanner (Subnautica)|Scanner]] was added. It was built with the [[Habitat Builder (Subnautica)|Habitat Builder]].{{Clear}}

====Gallery====
<tabber>
In-Game=
<gallery widths="200" spacing="small">
Botanical_Analysis_machine_in_game.jpg|Botanical Analysis Machine in-game
</gallery>
|-|
Concept Art=
<gallery>
Botanical Analysis machine-2-1.jpg|Botanical Analysis Machine [[Concept Art]]
</gallery>
|-|
Models=
<gallery>
PlantThingModel.jpeg|Model from [https://sketchfab.com/3d-models/botanical-analysis-machine-62abb0ffb02e43749a863273d362c0bc Sketchfab]
HighpolyPlantThing.jpeg|Highpoly model from [https://sketchfab.com/3d-models/botanical-analysis-machine-bakes-b9f056e02f134ef5bab67877c0f30650 Sketchfab]</gallery>
</tabber>

===Centrifuge===
{{Craftable
|title1 = Centrifuge
|image4 = Centrifuge.png
|tab = [[Interior Modules]]
|debugspawn = ''centrifuge''
}}The Centrifuge was meant to be used to turn [[DNA]] samples collected using the [[Transfuser]] into four transfuser serums. The Centrifuge was to be crafted with a Habitat Builder in a base. It can still be spawned in game, but has no collision and is non-functional. To do so, run the command <code>spawn centrifuge</code>. The Centrifuge's model can be found in [https://subnautica-belowzero.fandom.com/wiki/Omega_Lab Omega Lab] in Below Zero.{{Clear}}



====Gallery====
<gallery widths="200" spacing="small">
20161127045814 1.jpg|The Centrifuge
Centrifuge anim 01|Centrifuge early animations
Subnautica Transfuser Centrifuge Experimental WIP|A developer's video demonstrating how the Centrifuge is used to create serums
</gallery>

===Composter===
{{Craftable
|title1 = Composter
|image4 = Unknown.png
}}A '''Composter''' was a object used to convert plant matter into [[#Ethanol|Ethanol]] and other types of Plant Matter. It would have likely involved placing materials inside and allowing them to [[#Composting|compost]] over time. There was no known model made, and the tool appears to have been scrapped very early<ref name=Documents />. {{Clear}}

===Fragment Analyzer===
{{Craftable
|title1 = Fragment Analyzer
|image4 = Fragment_Analyzer.png
|tab = [[Interior Modules]]
|description = Studies fragments to make blueprints
|debugspawn = ''fragmentanalyzer''
}}The '''Fragment Analyzer''' was a [[Placeable Items|Placeable Item]] that was used to decode [[Fragments (Subnautica)|Fragments]] into [[Blueprints (Subnautica)|Blueprints]]. Only one fragment was needed to research a blueprint; however, the Fragment Analyzer could research four fragments at a time. The progress of analysis was displayed when the player looked at the Fragment Analyzer. At one point a Fragment Analyzer was pre-installed inside the [[Lifepod 5|Lifepod]]. The functionality of the Fragment Analyzer was given to the Scanner and the fragment system was reworked.

It was also intended to be used for the identification of the [[#Biome Eggs|scrapped biome eggs]] before this function was transferred to the [[#Specimen Analyzer|Specimen Analyzer]], which later was also scrapped. It can still be spawned in using the command <code>spawn fragmentanalyzer</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
FragmentAnalyzerOverview.png|The Fragment Analyzer
2015-04-07_00003.jpg|The Fragment Analyzer placed inside the Cyclops
</gallery>

===Nuclear Reactor (Old)===
{{Craftable
|title1 = Nuclear Reactor (Old)
|image4 = Nuclearreactor.png
|description = Processes uranium into potent energy (150 power/min)
|tab = Power
|debugspawn = ''nuclearreactor''
|category = [[Energy]]
}}The old [[Nuclear Reactor (Subnautica)|Nuclear]] Reactor was built outside of the Seabase and had to be supplied with raw [[Uraninite Crystal (Subnautica)|Uraninite]] to function. While it is unable to be spawned in, it's ID is <code>nuclearreactor</code>. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
OldNuclearReactor.png|The Nuclear Reactor
Nuclear Reactor (1).jpg|A Nuclear Reactor placed on the seabed
Nuclear Reactor Menu.jpg|The GUI of the Nuclear Reactor, allowing the [[Ryley Robinson|Player]] to process Uranium
</gallery>

===Observatory (Old)===
{{Craftable
|title1 = Observatory (Old)
|image4 = OldObservatory.png
|tab = [[Seabases (Subnautica)|Base Pieces]]
|debugspawn = ''observatoryold''
}}The '''Old Observatory''' was a small primitive glass box that could be constructed with the [[Mobile Vehicle Bay (Subnautica)|Mobile Vehicle Bay]]. Unlike the newer [[Observatory (Subnautica)|Observatory]] it was not a [[Seabases (Subnautica)|Seabase]] module and was instead freestanding. It had two entrances and was primarily used to observe [[Fauna]] and the environment. The only way to move it was to use [[Floater]]s. Though it can no longer be spawned in, it's current ID is <code>observatoryold</code>.

====Gallery====
<gallery widths="200" spacing="small">
Observatory_02.jpg|The Old Observatory Side View
Observatory_01.jpg|The Old Observatory Entrance View
</gallery>

===Power Generator===
{{Craftable
|title1 = Power Generator
|image4 = Power Generator.png
|tab = [[Exterior Modules]]
|description = Build on foundation to power base
|debugspawn = ''thermalplant''
|category = [[Energy]]
}}The '''Power Generator''' was a [[:Placeable Items|Placeable Item]] that generated [[Energy|Power]] for [[Seabases (Subnautica)|Seabases]] using [[Power Cell (Subnautica)|Power Cell]]s, of which it could hold six, similar to the Cyclops' engine, which the Power Generator also resembles. In the earliest versions of [[Subnautica]], it was the only method to give energy to Seabases. It was only a temporary power source, and was removed when it was replaced by the [[Nuclear Reactor (Subnautica)|Nuclear Reactor]] and [[Reactor Rod (Subnautica)|Reactor Rod]]s. {{Clear}}



{| class="article-table sortable" style="width: 100%;" cellspacing="1" cellpadding="1" border="0"
|-
! class="unsortable" style="width: 20%; text-align: center;" |
! class="unsortable" style="width: 20%; text-align: center;" |Trigger
! class="unsortable" style="width: 60%; text-align: center;" |Audio
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Turning On / Constructing
| style="text-align:left; font-size:12px;" |[[File:power_on.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Idle
| style="text-align:left; font-size:12px;" |[[File:power_loop.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Turning Off / Deconstructing
| style="text-align:left; font-size:12px;" |[[File:power_off.ogg]]
|}

====Gallery====
<gallery widths="200" spacing="small">
PowerGeneratorOverview.png|The Power Generator
Power Generator 10.jpg|A Power Generator placed on the Seabed
</gallery>

===Specimen Analyzer===
{{Craftable
|title1 = Specimen Analyzer
|image4 = Specimenanalyzer.png
|tab = [[Interior Modules]]
|description = Studies Specimens to make blueprints
|debugspawn = ''specimenanalyzer''
}}The '''Specimen Analyzer''' was a machine meant to study [[Eggs]]. It was removed when the [[Alien Containment (Subnautica)|Alien Containment]] and [[Scanner (Subnautica)|Scanner]] were added. Despite being removed, you can still see its model in Below zero's [[w:c:subnautica-belowzero:Research Base Zero|Research Base Zero]]. It can be spawned in game, but doesn't function and only holds small eggs. The command to do so is <code>item specimenanalyzer</code>. {{Clear}}

====Gallery====
<tabber>
In-Game=
<gallery widths="200" spacing="small">
SpecimenAnalyzerOverview.png|The Specimen Analyzer
Specimen Analyzer Model.jpg|The Specimen Analyzer placed in a [[Seabases (Subnautica)|Seabase]]
</gallery>
|-|
Concept Art=
<gallery>
Image01.png|Specimen Analyzer [[Concept Art]]
</gallery>
|-|
Models=
<gallery>
Specimen_AnalyzerModel.jpeg|Model from [https://sketchfab.com/3d-models/species-analyzer-a8fea32c579c4af89dae2c608bf7152e Sketchfab]
Specimen Highpoly Model.jpeg|Highpoly model from [https://sketchfab.com/3d-models/species-analyzer-highpoly-1f290b769b0344eb8d3500f89008bacb Sketchfab]
</gallery>
</tabber>

===Thermal Plant (Old)===
{{Craftable
|title1 = Thermal Plant (Old)
|image4 = Thermalplant.png
|tab = Power
|description = Converts heat to energy (> 15 °C) (50 power/min)
|debugspawn = ''thermalplant''
}}The old variation of the ''Thermal Plant'' didn't vary all that much from it's current counterpart, the [[Thermal Plant (Subnautica)|Thermal Plant]]. Mainly, the old Thermal Plant had a model similar to the [[#Accumulator|Accumulator]] and the old [[#Bioreactor (Old)|Bioreactor]]. It also only stored fifty power at maximum. {{Clear}}

====Gallery====
<gallery widths="200" spacing="small">
OldThermalPlant1.png|The Thermal Plant
OldThermalPlant2.png|Ditto, another angle
ThermalPlantSeafloor.png|The Thermal Plant, placed on the seabed
ThermalPlantGUI.png|The GUI of the Thermal Plant, showing the currently stored power (out of fifty)
</gallery>

==Story==
===Aurora (Old)===
[[File:CrashShipCrop1.png|right|150px]]
The '''Aurora''' used to be a flat, 2D texture. This texture was based off the [[Aurora]] [[Concept Art]], which featured a much sleeker design with a smaller bridge at the top and front-facing windows. The devs threw it together on March 11th, 2014<ref name=Aurora1>https://trello.com/c/xSdf8k6L/998-hack-in-crashed-ship</ref> and it was fully implemented on March 25th, 2014.<ref name=Aurora2>https://trello.com/c/gg8tCgCW/511-faked-crashed-ship</ref>

Later into development, specifically seen on August 18th, 2014<ref name=Aurora3>https://trello.com/c/WHDuMGme/400-b27-jialong-gameplay-test</ref>, the Aurora changed to a different 2D image, a much more recent version of the Aurora model. It was in a unique position, similar to the original concepts, but using the newer model.

The next time the Aurora was seen, it was a 3D model, seen during the [[Update History (Subnautica)#Early Access Release|Early Access]] launch. Two models, a non-damaged Aurora and a damaged Aurora, were both uploaded to the Trello<ref>https://trello.com/c/LcFZ9R9A/1770-starship-and-starshipcrashed</ref>. The non-damaged model never appears in game.

The Aurora at this stage had no interior. The simple interior was added on April 4th, 2015, the [[Update History (Subnautica)#Crash Site Update|Crash Site Update]]. This update featured a different Aurora interior, with a different entrance. If the [[Ryley Robinson|Player]] were to go underwater at the port side, a hole could be found that led directly to the Drive Core. Alternatively, going through the front led directly there after climbing to the top.

====Gallery====
<tabber>
Aurora 2D=
<gallery widths="200" spacing="small">
StarshipLowResTwo.jpg|Aurora Concept Ship hacked in during development
StarshipLowRes.png|Aurora Concept Ship seen outside [[Lifepod 5]]
StarshipAugust14th.jpg|The Aurora seen in a developer check-in on August 18th, 2014
</gallery>
|-|
Aurora (No Interior)=
<gallery widths="200" spacing="small">
StarshipIngame.jpg|[[Aurora]] full models
</gallery>
|-|
Aurora (Interior)=
<gallery widths="200" spacing="small">
File:AuroraPortEntranceOld.png|Portside Hole leading into the [[Aurora]]
InteriorOld1.png|Entrance Hallway
InteriorOld2.png|Administration Hallway, blocked at the end
InteriorOld3.png|Collapsed Hallway, unblocked
InteriorOld4.png|Long sloped hallway
InteriorOld5.png|Curve to Drive Core Room
InteriorOld6.png|Drive Core Room
InteriorOld7.png|Exit back out the the Portside Hole
</gallery>
</tabber>

===Alternative Endings===
<tabber>
Credits=
The Credits went through two iterations before finally being set as a simple scroll on a black screen. 

The first version of the credits depicted different biomes and scenes from Subnautica, with names being displayed during each area change. The second was a video recording of the [[Ryley Robinson|Player]] swimming through an area while the credits show up around them. Both can be viewed below, along with early in-dev footage of the ending cutscenes.

Obraxis confirmed they went unfinished due to the desire to not record any footage from in-game, which would be necessary due to loading times and such, as well as a lack of time for polish.<ref>https://imgur.com/uD9iyCi</ref>

====Gallery====
<gallery position="center" widths="300" spacing="small" captionalign="center">
Sequence 01|Video showing the first iteration of the credits
PREVIZ - SN End Sequence V2|Video showing the seconditeration of the credits
</gallery>
|-|
Cave Crawler Ending=
The Cave Crawler Ending is an older version of the Launch Sequence involving the [[Neptune Escape Rocket]]. The ending contained the same string of events with minor changes, along with one major change. The Arctic Landmass the [[Ryley Robinson|Player]] looks at is designed differently, and some dialogue was altered slightly. The [[Dialogue (Subnautica)#Sea Emperor Leviathan|{{subst:#if:Sea Emperor's|Sea Emperor's|Dialogue}}]] dialogue is not present in this version, nor is the "[[Dialogue (Subnautica)#Launch Sequence|{{subst:#if:One Trillion Credits|One Trillion Credits|Dialogue}}]]" message. After the screen faded to black, the Credits began. 

The most major change was the original implications of the Cave Crawler Ending. As stated by Obraxis, the Cave Crawler was intended to be infected with the [[Kharaa Bacterium]]; the idea being used to link the ending of Subnautica directly to ''[https://naturalselection.fandom.com/wiki/Natural_Selection_Wiki Natural Selection]'', a game also developed by ''Unknown Worlds Entertainment''. The cave crawler would've escaped and spread the infection, leading directly to the wars during ''Natural Selection''. As explained, it was cut due to the development team feeling it was too dark of an ending, thus replacing it with the current one.<ref>https://imgur.com/rRoY47N</ref>

The name is based off the [[Cave Crawler]], an aggressive scavenger [[Fauna]], which crawls across the roof of the [[Neptune Escape Rocket]] at the very end of the cutscene before it cuts to the credits.

====Gallery====
<gallery position="center" widths="300" spacing="small" captionalign="center">
SubnauticaCaveCrawlerEnding|Video of the Subnautica: Cave Crawler Ending
bandicam 2020 10 25 16 29 39 765|Another video, depicting an earlier version of the Cave Crawler's appearance
</gallery>
</tabber>

===Intro (Old)===
In earlier builds of the game, before the [[Lifepod 5]] intro cutscene was added, the PDA originally would monologue the plot as an '''Intro'''. In these earlier versions of the game, the plot involved the Aurora being a Terraforming Ship. These ships would terraform other planets to allow for human habitation. On this mission, however, the Aurora was struck by an unknown energy pulse and was shot down, similar to the current in-game event. During these builds, no other story was given until it was replaced. This can be played below.

On top of this, there is an even older intro heard in the Jiaolong Testing Video<ref name=Jiaolong />. This older version appears to be audio of Lifepod 5 being jettisoned and landing in the ocean. This is one of the only known recorded versions of this intro.

{| class="article-table sortable" style="width: 100%;" cellspacing="1" cellpadding="1" border="0"
|-
! class="unsortable" style="width: 20%; text-align: center;" |
! class="unsortable" style="width: 20%; text-align: center;" |Trigger
! class="unsortable" style="width: 60%; text-align: center;" |Transcription
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Starting the Game
| style="text-align:left; font-size:12px;" |
[[File:JiaolongIntro.ogg]]
|-
| style="text-align:center; font-size:12px;" |[[File:Log-128.png]]
| style="text-align:center; font-size:12px;" |Starting the Game
| style="text-align:left; font-size:12px;" |''"In the late 22nd century, humanity is beginning to colonize space. Before colony ships arrive, habitation vessels are appointed terraforming missions. The Aurora was one such vessel. During it's decent, the Aurora was struck by a mysterious energy pulse, resulting in catastrophic hull failure. A single lifepod jettisoned prior to impact. You were in that lifepod."''
[[File:Old Intro.ogg]]
|}

===Kharaa Bacterium (Old)===
Back during early story development, the '''Kharaa Bacterium''', originally called "Carar", looked much different. Instead of its green glow that is seen today, the older version took up a much more different approach. The cysts would have glowed bright orange and the cracks were more visible. This was likely changed to differentiate it from [https://naturalselection.fandom.com/wiki/Natural_Selection_2 Natural Selection Two's] version of the Kharaa.

====Gallery====
<gallery position="left" widths="200" spacing="small">
Infected Ampeel.jpg|Infected [[Ampeel]]
Infected Biter.jpg|Infected [[Biter]]
Infected Bladderfish.jpg|Infected [[Bladderfish (Subnautica)|Bladderfish]]
Infected Blighter.jpg|Infected [[Blighter]]
Infected Boneshark.jpg|Infected [[Boneshark]]
Infected Boomerang.jpg|Infected [[Boomerang (Subnautica)|Boomerang]]
Infected Crabsnake.jpg|Infected [[Crabsnake]]
Infected Crabsquid.jpg|Infected [[Crabsquid]]
Infected Crimson Ray.jpg|Infected [[Crimson Ray]]
Infected Eyeye.jpg|Infected [[Eyeye]]
Infected Garryfish.jpg|Infected [[Garryfish]]
Infected Gasopod.jpg|Infected [[Gasopod]]
Infected Holefish-0.jpg|Infected [[Holefish]]
Infected Hoopfish.jpg|Infected [[Hoopfish (Subnautica)|Hoopfish]]
Infected Hoverfish.jpg|Infected [[Hoverfish]]
Infected Lava Larva.jpg|Infected [[Lava Larva]]
Infected Lava Lizard-0.jpg|Infected [[Lava Lizard]]
Infected Lava Boomerang.jpg|Infected [[Magmarang]]
Infected Mesmer.jpg|Infected [[Mesmer]]
Infected Oculus.jpg|Infected [[Oculus]]
Infected Peeper-0.jpg|Infected [[Peeper]]
Infected Rabbit Ray.jpg|Infected [[Rabbit Ray]]
Infected Reaper Leviathan-0.jpg|Infected [[Reaper Leviathan]]
Infected Eyeye-0.jpg|Infected [[Red Eyeye]]
Infected Reefback.jpg|Infected [[Reefback Leviathan]]
Infected Reginald.jpg|Infected [[Reginald]]
Infected Spine Eel.jpg|Infected [[River Prowler]]
Infected Sandshark.jpg|Infected [[Sand Shark]]
Infected Sea Treader.jpg|Infected [[Sea Treader Leviathan]]
Infected Shuttlebug-0.jpg|Infected [[Shuttlebug]]
Infected Spadefish.jpg|Infected [[Spadefish]]
Infected Stalker.jpg|Infected [[Stalker]]
</gallery>

==Tools==
===Drill===
{{Craftable
|title1 = Drill
|image4 = Unknown.png
|tab = [[Tools]]
|description = Tooltip_Drill
|size = 1
|debugspawn = ''drill''
}}The Drill was planned to be an item in Subnautica. Little is known about the drill and it was scrapped in early development. However, its main purpose would probably have been drilling outcrops or drilling in the ground. The icon has since been removed and it no longer has a use. Though it cannot be used, it can be spawned in using the command <code>item drill</code>. {{Clear}}

===Hardened Blade===
{{Craftable
|title1 = Hardened Blade
|image4 = Hardened Blade.png
|tab = [[Tools]]
|description = Diamond-hardened blade delivers higher damage. 
|size = 1
|debugspawn = ''diamondblade''
}}The '''Hardened Blade''' was an upgraded version of the [[Survival Knife (Subnautica)|Survival Knife]]. It was crafted with the [[Modification Station (Subnautica)|Modification Station]]. Its damage output is 30 health. Before durability was removed, it had double the durability of the Survival Knife. It was removed since it was deemed worthless when durability was removed. Despite being removed, it is still mentioned in the "[[Databank (Subnautica)#Degasi Voice_Log #8 - Risk Taking|Degasi Voice Log #8 - Risk Taking]]."  It can still be spawned in and used as intended using the command <code>item diamondblade</code>. {{Clear}}

====Gallery====
<gallery position="left" widths="200" spacing="small">
HardenedBladeCrafting.gif|The [[Modification Station (Subnautica)|Modification Station]] creating a Hardened Blade
Hardened Blade 1.jpg|The Hardened Blade model (identical to the Survival Knife)
</gallery>

===Electrolizer===
{{Craftable
|title1 = Electrolizer
|image4 = Electrolizer.png
|tab = [[Tools]]
}}The '''Electrolizer''' was a tool that would have converted Water into [[#Hydrogen|Hydrogen]] and [[Oxygen]]. When it was used, it would spark and produce evaporation effects. If the tool was use in a submarine, it would add more Oxygen to the sub as it was produced and likely lower the water level slightly (if flooding). {{Clear}}

===Powerglide===
{{Craftable
|title1 = Powerglide
|image4 = Powerglide.png
|tab = [[Tools]]
|debugspawn = ''powerglide''
}}The '''Powerglide''' was an upgrade for the [[Seaglide (Subnautica)|Seaglide]]. The [[Ryley Robinson|Player]] could use the main functionality of it by holding {{Key|LMB}}, which would shoot the player forward at 3x the speed of a normal seaglide. When not holding the speed button, the Powerglide functioned as a normal Seaglide, minus the removed light.

The Powerglide's model was identical to that of the Seaglide's. The player would originally receive one upon starting a creative save, which was later replaced with a normal Seaglide. It was cut early in development due to the Player being able to glitch into the ground. It is no longer spawnable, though the ID is <code>powerglide</code>. {{Clear}}

====Gallery====
<gallery position="left" widths="200" spacing="small">

PowerglideFront.png|Front View
PowerglideBack.png|Back View
PowerglideDemo.gif|A demonstration of the Powerglide, zipping through the [[Safe Shallows]]

</gallery>

===Terraformer===
{{Craftable
|title1 = Terraformer
|image4 = Terraformer.png
|tab = [[Tools]]
|acqired_from = [[Fragments (Subnautica)|Fragments]]
|description = Build and destroy terrain
|size = 4 (2&times;2)
|debugspawn = ''terraformer''
|build_time = 3 seconds
|item2 = Terraformer Fragment
|image2 = TerraformerFragment.png
|location2 = * Seabed
|debugspawn2 = ''terraformerfragment''
|Fragments2 = 3
}}The '''Terraformer''' was a tool that allowed the player to remove material from one place in the world and deposit it elsewhere. A counter showed the current amount of material held by the device.

The Terraformer was removed due to performance issues. The Terraformer would store it's data at a specific location in the game's files, and would apply the changes saved to this file when loading terrain. This caused massive lag spikes and prompted a practice of deleting this stored data in order to increase performance.

If the Terraformer is spawned in more current versions, the description is "RIP terraformer" referring to the development team's disappointment in having to remove it. The item texture in the inventory has also been deleted and changed to the ? icon. Although it is still functional when spawned in, all changes made to the terrain using the Terraformer will be reset upon reloading the world. It can be spawned in using the command <code>item terraformer</code>

''Terraformer Fragments'' were to be scattered in certain biomes. They were intended to be scanned to obtain a Terraformer. Where it would have spawned and how many were required to complete the blueprint is unknown. Just like the actual Terraformer, it can still be spawned in using the command <code>spawn terraformerfragment</code>. {{Clear}}

====Gallery====
<tabber>
In-Game=
<gallery position="left" widths="200" spacing="small" captionalign="left">
Terraformer (1).jpg|Side
Terraformer (2).jpg|Back
Terraformer (3).jpg|Front
Terraformer (4).jpg|The player holding the Terraformer
</gallery>
|-|
Models=
<gallery>
Terraformermodel3.png|Model from [https://sketchfab.com/models/5a317e74b3824952a2bc3e415e04587d Sketchfab]
TerraformerHighpoly.jpeg|Highpoly model from [https://sketchfab.com/3d-models/terraformer-highpoly-8992e8763841419faca0cbed035966be Sketchfab]
</gallery>
</tabber>
===Transfuser===
{{Craftable
|title1 = Transfuser
|image4 = Transfuser.png
|tab = [[Tools]]
|acqired_from = [[Fragments (Subnautica)|Fragments]]
|description = Samples DNA
|size = 4 (2&times;2)
|debugspawn = ''transfuser''
|build_time = 3 seconds
|item2 = Transfuser Fragment
|image2 = Transfuser Fragment 1.png
|location2 = * Seabed
|debugspawn2 = ''transfuserfragment''
|Fragments2 = 3
}}The '''Transfuser''' was a [[Tools|Tool]] intended to sample DNA from life forms and then use this DNA in the Centrifuge to create consumable items that would alter the player's or other creatures' attributes. The model was reused for ''[[Subnautica: Below Zero|Subnautica: Below Zero's]]'' [[w:c:subnautica-belowzero:Cut Content#Bioscanner|Bioscanner]], which was also eventually cut due to story changes.

The player can still obtain one in the creative blueprints, or spawn one in using the command <code>item transfuser</code>. The Transfuser's description was changed to: congrats translators, we made a game!

''Transfuser Fragments'' were to be found in different biomes across the map. They were intended to be scanned to obtain a Transfuser. Where it would have spawned is unknown. It can still be spawned in using the command <code>item transfuserfragment</code>. {{Clear}}

====DNA Effects====
{| class="article-table" style="width: 100%;" border="0" cellpadding="1" cellspacing="1"
|-
! scope="col" |Creature
! scope="col" |Behaviour
! scope="col" |Outcome
|-
|[[Holefish]]
|Generates no events. Creature doesn't see the player. Because of the hole.
|Not known
|-
|[[Boomerang (Subnautica)|Boomerang]]
|When it sees aggressive fauna in front of it, it swims by quickly, cutting target for damage but for blood.
|Extra damage backwards/away from current
|-
|[[Peeper]]
|Checks out shiny things.
|Extra speed
|-
|[[Garryfish]]
|Follows the player.
|Follow player
|-
|[[Rabbit Ray]]
|Lies on ground like flounder. Flees when detects sound.
|Friendliness
|-
|[[Hoverfish]]
|Danger patterning makes all med/small fish move away from him.
|Hover on the surface of the water
|-
|[[Crashfish (Subnautica)|Crashfish]]
|Gets aggressive from nearby motion events in radius, eventually attacking source.
|Not known
|-
|[[Bleeder]]
|Attacks healthiest live target within range (most health).
|Attracted to large creatures
|-
|[[Reginald]]
|N/A
|Regeneration (On player)
|-
|[[Spadefish]]
|N/A
|Not known
|-
|[[Shuttlebug]]
|Attracted to buried loot.
|Will swim around fallen loot/collect your fallen loot
|-
|[[Stalker]]
|Aggressive for blood, attracted to blood, attacks other aggressive fauna and med. fish.
|Swim around metal
|-
|[[Gasopod]]
|Creates poison cloud when it sees hostile fauna nearby.
|If in danger will create a gas cloud
|-
|[[Eyeye]]
|Perfect eyesight in all conditions. Shrieks when it sees something with more mass than it.
|Swim away from danger
|-
|[[Sand Shark]]
|Move towards vibrations when under ground, then jumps out to attack source.
|Attracted to motion
|-
|[[Mesmer]]
|Mesmerizes nearby creature when threatened, then attacks them.
|Will confuse predators
|-
|[[Oculus]]
|Almost blind in light, sees clearly in dark (nightvision)
|Nightvision
|-
|[[Jellyray]]
|Big light source
|Bioluminescence
|}

====Gallery====
<gallery widths="200" spacing="small">
Transfuser_(1).jpg|The Transfuser
Transfuser_(2).jpg|The Transfuser in the player's hand.
transfusermodel.png|Transfuser Model from [https://sketchfab.com/models/72cffc366e864daab2c05fc8c9399eda Sketchfab].
Transfuser Liquid.jpg|Transfuser Liquids
Transfuser 11.gif|A Transfuser containing [[Reefback Leviathan]] serum.
transfuserconcept.jpg|Transfuser [[Concept art]]
</gallery>

==References==
<references />
[[fr:Contenu abandonné]]
[[pt-br:Coisas Removidas]]
[[ru:Удалённый контент]]
[[uk:Вирізаний контент]]
[[Category:Development]]