Safe Shallows
The starting biome. Abundant basic resources, minimal threats. Ideal for early gathering.
Location Starting area, Near surface
Key Resources Titanium, Quartz, Copper Ore, Creepvine
Creatures & Biomes
Fan-made biome overview and creature danger levels. Work in progress as more data is confirmed.
This is a fan-made guide, not affiliated with Unknown Worlds, Krafton, or the official Subnautica 2 team.
Data may be incomplete as the game evolves. Items marked WIP or Needs Verification are unconfirmed.
Biomes
Kelp Forest
Dense vegetation. Creepvine clusters are abundant. Watch for mid-tier predators moving through.
Location Near safe shallows borders, Mid-shallow zones
Key Resources Creepvine Sample, Creepvine Seed Cluster, Silver Ore
Grassy Plateaus
Open terrain with good visibility. Sandy areas often have quartz. Relatively safe for exploration.
Location Surrounding safe shallows, Early exploration range
Key Resources Quartz, Table Coral, Limestone Outcrops
Mushroom Forest
Distinctive large mushroom trees. Gel sacks can be found here. Beware of fauna.
Location Mid distance from starting area
Key Resources Gel Sack, Tree Mushroom, Magnetite
Jellyshroom Cave (analog)
Work in progress. Cave biome with bioluminescent flora. Resource-rich but enclosed.
Location Underground below mushroom forest or grassy plateaus
Key Resources Gel Sack, Ruby analog
Koosh Zone / Sparse Reef analog
Work in progress — verifying Subnautica 2 equivalent biome name and location.
Location Mid-depth, varied locations
Key Resources Magnetite, Lithium
Blood Kelp Zone (analog)
Dark, dangerous biome. High-value resources but significant predator presence.
Location Deeper zones, roughly 300-500m+
Key Resources Uraninite Crystal, Diamond, Kyanite analog
Inactive Lava Zone (analog)
Late-game biome. Extremely dangerous but contains unique resources for story progression.
Location Extreme depths, late game
Key Resources Diamond, Kyanite analog, Nickel Ore analog
Creatures
Peeper (analog)
Small passive fish. Edible — useful early food source. Iconic Subnautica creature type.
Found In Safe shallows, Grassy plateaus, Kelp forest
Gasopod (analog)
Passive unless provoked. Releases toxic gas pods when threatened. Avoid disturbing it.
Found In Grassy plateaus, Shallow areas
Stalker (analog)
Territorial predator that attacks on sight. Can be avoided. Drops metal salvage — useful early game.
Found In Kelp forest, Safe shallows borders
Crabsnake (analog)
Ambush predator living inside jellyshroom tubes. Avoid getting too close to the mushrooms.
Found In Jellyshroom cave biome
Reaper Leviathan (analog)
Apex predator of shallow-to-mid zones. Can destroy vehicles. Avoid completely in early game.
Found In Mid-depth open ocean, Specific danger zones
Sea Dragon Leviathan (analog)
Late-game apex predator. Avoid unless fully geared.
Found In Lava zones, Extreme depths
Sand Shark (analog)
Aggressive predator that buries itself in sand. Watch for disturbances in sandy terrain.
Found In Grassy plateaus, Sandy areas
About This Section
Subnautica 2 features a vast alien ocean with distinct biomes, each with unique ecosystems and resources. This page provides a quick fan-made reference for biome characteristics and creature danger levels.
Data status
Most entries are based on patterns from Subnautica 1 and early community reports for Subnautica 2. Exact names and locations may differ from the shipped game. Items marked Needs Verification are especially speculative.
Creature names use (analog)
Many creatures are listed as "(analog)" because their exact Subnautica 2 names are unconfirmed. These are educated guesses based on Subnautica 1 equivalents and will be updated as the game's content is confirmed.