S2 Subnautica 2 Wiki

Biomes

A biome reference hub for confirmed exploration zones, resources, risks, and base-route notes.

Quick answer: Official wording confirms several biomes for Early Access, but specific biome names, depth ranges, resources, and creature risks should wait for official or in-game confirmation.
Deep sea exploration scene with submersibles and glowing underwater structures
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Depth range
Shallow to abyssal zones
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Major resources
What to farm in each zone
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Creature risk
Threat level and known fauna
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Base viability
Safe spots to build
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Landmarks
Navigation reference points
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Progression gates
What you need to enter

Biome verification table

Field Current status Verification rule
Biome name Pending Early Access verification Use official or in-game names once confirmed.
Depth range Pending Record approximate depth bands and safe return points.
Major resources Pending List only materials observed or officially confirmed.
Creature risk Pending Tie risk to observed fauna and traversal difficulty.
Base viability Planning category Judge power, distance, exits, and nearby threats after launch.
Progression gate Pending Do not assume tools or vehicle requirements before testing.

Pre-launch biome planning

Treat the first session as a mapping run, not a deep expedition.
Mark safe return routes before following rare materials.
Record oxygen pressure, visibility, and threat changes by area.
Keep base-route notes separate from full biome guides until tested.
Deep sea exploration scene with submersibles and glowing underwater structures
Zone identity
Each biome should feel distinct by depth, resources, and risk.
Divers and a maintenance robot near an underwater habitat corridor
Safe exits
Base routes and emergency oxygen points matter as much as landmarks.

Related biome routes

Use these pages to connect exploration zones with materials, creatures, and first-session routes.