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This article is about the Biomes in Subnautica. To see this subject's article on the Below Zero Wiki, click here.

Subnautica features a wide range of Biomes to explore and exploit. They all represent miniature ecosystems from the real world.

There is a huge variety of Biomes, from the vibrant Kelp Forest to the sizzling depths of the enigmatic Lava Lakes. Each Biome contains its own set of Flora and Fauna to discover and resources to harvest.

Biomes

Surface Biomes

Biome Depth Range Harvesting Nodes Points of Interest
BloodKelpZoneNorthTrue
Blood Kelp Zone
  • 150 - 675 meters (Trench)
  • 200 - 580 meters (Northern)
BulbZoneTrue
Bulb Zone
  • 140 - 480 meters
Crag Field Biome
Crag Field
  • 125 - 460 meters
CrashZoneTrue
Crash Zone
  • 0 - 370 meters
CraterEdgeTrue
Crater Edge
  • 0 - 8000 meters

None

None

Dunes Biome
Dunes
  • 65 - 400 meters
Grand Reef Biome
Grand Reef
  • 150 - 480 meters
Grassy Plateaus Biome
Grassy Plateaus
  • 50 - 170 meters
KelpForestTrue
Kelp Forest
  • 0 - 160 meters
Mountains Biome
Mountains
  • 0 - 500 meters
MushroomEastTrue
Mushroom Forest
  • 75 - 250 meters (Northwestern)
  • 125 - 200 meters (Northeastern)
SafeShallowsTrue
Safe Shallows
  • 0 - 80 meters
STPTrue
Sea Treader's Path
  • 170 - 360 meters
Sparse Reef Biome
Sparse Reef
  • 40 - 310 meters
UnderIslandsInfobox
Underwater Islands
  • 35 - 500 meters

Islands

Biome Depth Range Harvesting Nodes Points of Interest
FloatingIsland1
Floating Island
  • Above sea level

-

MounatinISlandInfoboxPic
Mountain Island
  • Above sea level

Cave Biomes

Biome Depth Range Harvesting Nodes Points of Interest
BloodKelpCavesInfoboxTrue
Blood Kelp Caves
  • 285 - 675 meters
-
Lost RIverCavesInfobox
Bone Fields Caves
  • 610 - 710 meters

-

-
BulbZonecavesinfobox
Bulb Zone Caves
  • 220 - 315 meters
DeepGradnInfoboxTrue
Deep Grand Reef
  • 425 - 630 meters
DeepSparse
Deep Sparse Reef
  • 210 - 290 meters
DunesCavesInfoboxImage
Dunes Caves
  • 400 - 420 meters

-

GR Caves Infobox
Grand Reef Caves
  • 120 - 410 meters

-

GrassyPlateausCavesInfoboxTrue
Grassy Plateaus Caves
  • 120 - 175 meters

-

Lava 9
Inactive Lava Zone
  • 900 - 1300 meters
2016-02-07 00009
Jellyshroom Cave
  • 180 - 300 meters
KelpForestCavesInfobox
Kelp Forest Caves
  • 90 - 170 meters
-
ALZ1
Lava Lakes
  • 1300 - 1700 meters
-
Lost RIver Infobox PIc
Lost River
  • 550 - 1000 meters
20170424174843 1
Mountains Caves
  • 0 - 380 meters
  • Thermal Vents (2)
2016-02-11 00031
Mushroom Forest Caves
  • 170 - 250 meters

-

SAFECAVES3
Safe Shallows Caves
  • 10 - 75 meters

-

2016-02-08 00003
Sea Treader's Tunnel Caves
  • 200 - 340 meters

-

Screen Shot 2017-03-02 at 17.20.59
Underwater Islands Caves
  • 205 - 255 meters

-

Mini-Biomes

Biome Depth Range Harvesting Nodes Points of Interest
CZMesasInfobox
Crash Zone Mesas
  • 150 - 330 meters

-

LavaGeyserInfobox
Lava Geyser
  • 60 - 560 meters

-

LavaCastle2
Lava Castle
  • 1100 - 1300 meters
-
Infobox ILZC
Inactive Lava Zone Corridor
  • 800 - 1200 meters
-

Gallery

Trivia

  • Early development footages of biome generation can be seen on a playlist from Russel Maekim's YouTube channel.
  • The game considers the inside of an Observatory, Lifepod, Scanner Room, Alien Containment, and inside the aquarium in the Primary Containment Facility to be completely separate biomes.
  • Early surface biome concepts were divided into Kelp Forest, Dense Kelp Forest, Sunny Kelp Forest, Coral Reef, Danger Reef, Safe Shallows, Grand Reefs, and Floating Islands.
  • Early lava zone biome concepts were divided into Lava Zone, Lava Bridges, Inactive Lava Zones and Thermal Vents.
  • The Lava lakes and the Crater Edge are the only biomes that do not contain any Flora.

Start a Discussion Discussions about Biomes

  • Arctic biome and seasons.

    27 messages
    • and will their be anymore fish or leviathans. becuase the PDA says that they're only microscopic life and leviathan life, what could be ...
    • Maybe you'll find the gargantuan fossil still alive frozen in ice. I'm definitely not sleeping tonight.
  • they need to make the artic biome a thing who agrees

    10 messages
    • It's going to be an expansion pack.
    • Of course, if you respond ''four months later'', the facts will have changed.