HUD

The HUD (Heads Up Display) is a vital mechanic in video games, providing important information directly on the screen.

The HUD

The HUD in Subnautica monitors the player's Oxygen, Hunger, Thirst, and Health. The full set is only present in survival and hardcore. In freedom, only health and oxygen are displayed. In Creative, none of these are present.

When the PDA is opened, the HUD will display numerical values in place of the icons, allowing players to track the exact amount of hunger they will gain from food, and how long they have until they must eat or drink.

At the top of the HUD, the Depth Meter is displayed. If a Compass is equipped, it will be displayed directly below the Depth Meter.

The Toolbar

The Toolbar is located in the bottom section of the HUD. Players may select which items are to be accessed via the Toolbar. There are five slots to use.

There is selection of items that can be put in the Toolbar. These primarily include Small Fauna, Tools, some Equipment, and Placeable Items.

How to Use

Open the PDA
Hover the mouse cursor over the item that is to be assigned to the Toolbar
Press the corresponding number key to assign the item to a slot
- Alternatively, drag and drop an item into a slot, which replaces the previous item assigned to the slot (if there was one)
Close the PDA and press the correct key to equip the item assigned to that slot.

Controls

Action	Mouse & Keyboard	Xbox One	PlayStation 4
Open PDA	TAB	Error: Invalid Button Specified	Error: Invalid Button Specified
Assign Item	1 to 5, Drag and Drop		Error: Invalid Button Specified