Subnautica 2 Biomes
3 biomes documented
All biomes discovered in Subnautica 2, organized by depth. Each biome page includes the creatures and resources found there, depth ranges, and interactive map locations. Explore every region of the alien ocean.
The ocean world of Subnautica 2 is divided into distinct ecological regions, each with unique terrain, flora, fauna, and resource deposits. Biomes range from sunlit shallow reefs teeming with passive creatures to pitch-dark abyssal zones inhabited by aggressive leviathans. Depth is the primary factor determining biome difficulty — deeper regions contain rarer resources but also more dangerous wildlife. As Subnautica 2 is in Early Access, the biome map is expected to expand with future updates.
Coral Gardens
0–200m depth
Sparse Plains
50–150m depth
Observatory Ruins
100–400m depth
Biome Categories
Surface biomes are the shallowest regions (0–200m), offering abundant sunlight, passive wildlife, and basic raw materials. These are the starting areas where players first establish their base and learn survival fundamentals. Expect plentiful food sources and low-tier crafting resources.
Deep biomes begin where sunlight fades. These regions feature unique bioluminescent flora, rarer mineral deposits, and increasingly aggressive creatures. Vehicle upgrades and depth modules are essential for sustained exploration in deep biomes.
Exploring Biomes
Use the interactive map to see biome boundaries and plan exploration routes. Each biome detail page lists all creatures and resources found in that region, making it easy to plan targeted gathering expeditions. In cooperative multiplayer, coordinating biome exploration across your team is key to efficient progression — one player can focus on resource-rich shallow biomes while another tackles deeper regions with better equipment.
Frequently Asked Questions
How many biomes are in Subnautica 2 Early Access?
The current Early Access build has 3 documented biomes. The full release is expected to include significantly more regions, similar to the original Subnautica which featured over 20 distinct biomes.
What is the deepest biome in Subnautica 2?
Sort the biome list above by depth to find the deepest region. Deep biomes require vehicle depth upgrades to explore safely, and contain the rarest resources and most dangerous creatures in the game.