There are quite a lot of Subnautica Biomes. All of the Biomes have their very own ecosystem, which makes them quite different than one another, and thus this means that people can get quite lost when going into the different Biomes and exploring all of the different Flora and Fauna that are present within the Biomes.
This Subnautica Guide is your go-to place for when you are trying to figure out how you can go into the Biomes with a plan laid out on which places you need to visit and what you need to do in order to make your trip worth it.
You can also acquire items acquired from these Subnautica Biomes by using PC Console Commands found at the link.
Subnautica Biomes
There are a lot of different Biomes that are available within the game. Some of them are found on the Surface, others are found in Caves and Islands.
This Subnautica Biomes Guide will go through all of them one by one. We will tell you the depth range of the Biomes, after which we will mention all of the harvesting nodes where you can find some of the precious items that you may need.
Lastly, we will mention some other points of interests which you should visit when in the Biomes, as they will provide you with some interesting information and materials to find. You can also check out our Raw Materials Farming Locations Guide.
Surface Biomes
These Biomes are all found on the Surfaces. Let’s take a look at them and figure out how you can make the most of your time in them.
| Biome | Depth | Harvesting Nodes | Places to Visit |
| Blood Kelp Zone | 150 – 675 Meters (Trench) | Shale Outcrop | Large Wreck (1) (Trench) Destroyed Lifepod (1) (Northern) Blood Kelp Sanctuary (Northern) |
| Bulb Zone Biome | 140 – 480 Meters | Sandstone Outcrop Shale Outcrop | Large Wreck (2) Destroyed Lifepod (1) Lava Geysers (3) Bulb Zone Arch Cache (1) |
| Crag Field Biome | 125 – 460 Meters | Shale Outcrop Limestone Outcrop | Crag Field Arch Cache (1) Destroyed Lifepod |
| CrashZone | 0 – 370 Meters | Limestone Outcrop Sandstone Outcrop Shale Outcrop | Aurora Destroyed Lifepod (1) |
| Dead Zone | 0 – 3000 Meters | None | None |
| Dunes Biome | 65 – 400 Meters | Limestone Outcrop Sandstone Outcrop | Large Wreck (1) Meteor Crater Giant Sinkhole Dunes Sanctuary (1) Alien Vent Entrance Point |
| Grand Reef Biome | 150 – 480 Meters | Shale Outcrop | Large Wrecks (2) Thermal Vents (5) Alien Vent Entrance Point |
| Grassy Plateaus Biome | 50 – 170 Meters | Limestone Outcrop Sandstone Outcrop | Large Wrecks (5) Small Wrecks (6) Destroyed Lifepods (2) |
| Kelp Forest Biome | 0 – 160 Meters | Limestone Outcrop Sandstone Outcrop | Large Wrecks (4) Destroyed Lifepod (1) |
| Mountains Biome | 0 – 500 Meters | Sandstone Outcrop Shale Outcrop | Large Wreck (1) Thermal Vents (10) Alien Arch Platform (1) Alien Vent Entrance Point |
| Mushroom Forest | 75 – 250 Meters (Northwestern) 125 – 200 Meters (Northeastern) | Limestone Outcrop Purple Pinecone Sandstone Outcrop Shale Outcrop | Large Wreck (1) Destroyed Lifepod (1) Mushroom Forest Arch Cache (Northwestern) Alien Vent Entrance Point (Northeastern) |
| Safe Shallows | 0 – 80 Meters | Limestone Outcrop Sandstone Outcrop | Large Wrecks (2) Small Wrecks (7) Lava Geysers (2) Destroyed Lifepod (1) |
| Sea Treader’s Path | 170 – 360 Meters | Shale Outcrop | Large Wreck (1) |
| Sparse Reef Biome | 40 – 310 Meters | Limestone Outcrop | Alien Vent Entrance Point |
| Underwater Islands | 35 – 500 Meters | Shale Outcrop Limestone Outcrop | Large Wreck (1) Lava Geysers (8) Alien Vent Entrance Point |
Island Biomes
There are only a total of two Island Biomes in Subnautica. Let’s go ahead and take a look at them both.
| Biome | Depth | Harvesting Nodes | Places to Visit |
| Floating Island | Above sea level | – | Degasi Seabases (3) Floating Island Arch Cache (1) |
| Mountain Island | Above sea level | Shale Outcrop Sandstone Outcrop | Quarantine Enforcement Platform Mountain Island Arch Cache (1) |
Cave Biomes
Subnautica has its fair share of Cave Biomes and there are a lot of different interesting things in them, so let us tell you where to go to find those things.
| Biome | Depth | Harvesting Nodes | Places to Visit |
| Blood Kelp Caves | 285 – 675 Meters | Shale Outcrop | – |
| Bone Fields Caves | 610 – 710 Meters | – | – |
| Bulb Zone Caves | 220 – 315 Meters | Shale Outcrop | Lava Geyser (1) |
| Deep Grand Reef | 425 – 630 Meters | Purple Pinecone Shale Outcrop | Degasi Seabase (1) |
| Deep Sparse Reef | 210 – 290 Meters | Limestone Outcrop | Sparse Reef Sanctuary Destroyed Lifepod (1) |
| Dunes Caves | 400 – 420 Meters | Sandstone Outcrop | – |
| Grand Reef Caves | 120 – 410 Meters | Limestone Outcrop | – |
| Grassy Plateaus Caves | 120 – 175 Meters | Limestone Outcrop Sandstone Outcrop Shale Outcrop | – |
| Inactive Lava Zone | 900 – 1300 Meters | None | Lava Castle Alien Thermal Plant |
| Jellyshroom Cave | 180 – 300 Meters | Sandstone Outcrop Shale Outcrop | Degasi Seabase (1) |
| Kelp Forest Caves | 90 – 170 Meters | Limestone Outcrop Sandstone Outcrop | – |
| Lava Lakes | 1300 – 1700 Meters | None | Primary Containment Facility |
| Lost River | 550 – 1000 Meters | None | Disease Research Facility Gargantuan Fossil Lost River Laboratory (1) Ghost Forest Arch Cache (1) |
| Mountain Range Caves | 0 – 380 Meters | Shale Outcrop | Thermal Vents (?) |
| Mushroom Forest Caves | 170 – 250 Meters | Shale Outcrop | – |
| Safe Shallows Caves | 10 – 75 Meters | Limestone Outcrop Sandstone Outcrop | – |
| Sea Treader’s Tunnel Caves | 200 – 340 Meters | Shale Outcrop | – |
| Underwater Islands Caves | 205 – 255 Meters | Shale Outcrop Limestone Outcrop | – |
Mini Biomes
These are some other Biomes found in the world of Subnautica. Go ahead and take a look.
| Biome | Depth | Harvesting Nodes | Places to Visit |
| Crash Zone Mesas | 150 – 330 Meters | Sandstone Outcrop Limestone Outcrop | – |
| Lava Geyser | 60 – 560 Meters | Shale Outcrop Sandstone Outcrop Limestone Outcrop | – |
| Lava Castle | 1100 – 1300 Meters | None | Alien Thermal Plant |
| Inactive Lava Zone Corridor | 800 – 1200 Meters | None | – |
That is all we have for our Subnautica Biomes Guide. Let us know if we missed something using the comments section below!
