Biome Database
Subnautica 2 Biomes
8 biomes mapped for Early Access — depth, threats and resources for each, with credibility tags so you know what is verified vs predicted.
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Confirmed Twisty Bridges
0-100mThreat1/5Spire-laden shallow biome shown in the cinematic trailer — your starting zone in Early Access.
Resources
TitaniumCopperQuartzThreats
⚠ Crashfish -
Confirmed Kelp Forest
20-160mThreat2/5Dense bioluminescent kelp providing cover and creature spawns. Returning from Subnautica 1 with Below Zero variants.
Resources
Creepvine SeedAcid MushroomSilver OreThreats
⚠ Stalker⚠ Bleeder -
Confirmed Crash Zone
0-180mThreat3/5Wreckage field around the Aurora-equivalent — high reward, high risk for early scavenging.
Resources
Wreckage FragmentsMagnetiteLithiumThreats
⚠ Reaper Leviathan⚠ Crashfish -
Predicted Grand Reef
200-400mThreat3/5Deep coral plateau predicted from trailer color grading. Medium-game biome with rare ore.
Resources
MagnetiteGoldLithiumThreats
⚠ Ghost Leviathan Juvenile -
Predicted Mushroom Forest
100-260mThreat2/5Bioluminescent mushroom canopy — likely returning given Subnautica 1 fan demand.
Resources
Tree MushroomDiamondLeadThreats
⚠ Bonesharks -
Leaked Lost River
500-900mThreat4/5Brine river network leaked in pre-release datamine. Late-game progression gate.
Resources
NickelMagnetiteLithiumThreats
⚠ River Prowler⚠ Ghost Leviathan -
Confirmed Ice Shelf (Co-op)
0-80mThreat2/5Surface ice biome confirmed for 4-player co-op tutorial sequence.
Resources
Snow Stalker FurLithiumSulphurThreats
⚠ Snow Stalker⚠ Frostvang -
Predicted Abyssal Trench
1000m+Threat5/5Endgame biome predicted from trailer's deep-pressure scenes. Reserved for full release content.
Resources
KyaniteUraniniteSulphurThreats
⚠ Sea Dragon Leviathan-class
Methodology
Confirmed biomes appear in the official trailer or Steam store materials. Leaked biomes come from pre-launch datamines cross-referenced across multiple sources. Predicted biomes are inferred from Subnautica 1 / Below Zero patterns. The full methodology is in the Subnautica 2 biomes article.