Biomes (Subnautica)

Subnautica features a wide range of Biomes to explore and conquer, representing miniature ecosystems. The word itself comes from the term "bio", meaning life.

Biomes

Surface biomes (out of date)

Surface Biomes

• Blood Kelp Zone (150m - 675m)
• Crash Zone (0m - 300m)
• Dunes (65m - 400m)
• Floater Island (Surface)
• Grand Reef (180m - 450m)
• Grassy Plateaus (50m - 170m)
• Kelp Forest (1m - 160m)
• Koosh Zone (140m - 480m)
• Mountain Island (Surface)
• Mountains (0m - 500m)
• Mushroom Forest (75m - 250m)
• Safe Shallows (1m - 80m)
• Sea Treader's Path (170m - 360m)
• Sparse Reef (40m - 310m)
• Underwater Islands (35m - 500m)

Cave Biomes

• Blood Kelp Caves (430m - 675m)
• Deep Grand Reef (425m - 600m)
• Jelly Shroom Caves (180m - 300m)
• Kelp Forest Caves (90m - 170m)
• Lava Caves (220m - 315m)
• Mountain Range Caves (0m - 380m)
• Mushroom Forest Caves (170m - 250m)
• Overgrown Caves (125m - 200m)
• Safe Shallows Caves (10m - 75m)
• Sea Treader's Tunnel Caves (200m - 340m)
• Tiger Plant Caves (120m - 175m)

In-Development Biomes

• Inactive Lava Zone (600m - 1500m)
• Lost River (700m - 800m)

Mini-Biomes

• Lava Geyser (variable depth)

Possible Biomes

• Arctic
• Twisty Bridges

Gallery

• 

  Arctic biome's reference sheet, made by the developers

• 

  Early development biome's reference sheet

• 

  Lost River's early map, with the Sea Treader's Path encircled in red

• 

  Colorblind-friendly biome map

• 

  Biome-map as of build 31835

Trivia

• Developers' footages of biome generation can be seen on a playlist from Russel Maekim's Youtube channel. He also sometimes livestreams his work on Twitch.

• The game considers the inside of an Observatory and Scanner Room to be separate biomes.