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Subnautica All Sub-Biomes

In this quiz, you have 10 minutes to type in every biome and sub-biome in Subnautica. They are ordered alphabetically. For some sub-biomes, I could not find the accurate depth, so I put in the depth range of the main biome.
Quiz by
Tigoros
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Last updated: March 30, 2026
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First submittedMarch 16, 2026
Times taken41
Average score37.3%
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Depth / Water
Colour
Biome (Sea)
≥ 0 - 560 m
(Main Biome)
Aurora Wreckage
100 - 675 m
Blood Kelp Trench
170 - 620 m
(Northern) Blood
Kelp Zone /
Blood Kelp Islands
140 - 540 m
Bulb Zone
45 - 560 m
Crag Field
≥ 0 - 560 m
Crash Zone
≥ 0 - 560 m
(Main Biome)
Crash Zone Mesas
≥ 0 - 560 m
(Main Biome)
Crash Zone Trench
0 - 8192 m
Crater Edge
65 - 530 m
Dunes
90 - 570 m
Grand Reef
40 - 200 m
Grassy Plateaus
0 - 160 m
Kelp Forest
0 - 560 m
Mountains
50 - 250 m
Mushroom Forest
0 - 80 m
Safe Shallows
170 - 425 m
Sea Treader's Path
20 - 310 m
Sparse Reef
25 - 540 m
Underwater Islands
Depth / Water
Colour
Biome (Caves)
285 - 675 m
Blood Kelp Caves
220 - 315 m
Bulb Zone Caves
390 - 640 m
Deep Grand Reef
210 - 290 m
Deep Sparse Reef
400 - 420 m
Dunes Caves
120 - 420 m
Grand Reef Caves
120 - 245 m
Grassy Plateaus
Caves
960 - 1390 m
(Main Biome)
Inactive Lava
Chamber
960 - 1390 m
Inactive Lava Zone
800 - 1200 m
Inactive Lava Zone
Corridor
135 - 305 m
Jellyshroom Caves
90-170 m
Kelp Forest Caves
1100 - 1300 m
Lava Castle
1280 - 1470 m
Lava Lakes
960 - 1390 m
(Main Biome)
Lava Pit
525 - 1065 m
Lost River
525 - 1065 m
(Main Biome)
Lost River Bone
Fields
610 - 710 m
Lost River Bone
Fields Caves
525 - 1065 m
(Main Biome)
Lost River Corridor
525 - 1065 m
(Main Biome)
Lost River Ghost
Canyon
525 - 1065 m
(Main Biome)
Lost River Ghost
Forest
525 - 1065 m
(Main Biome)
Lost River Junction
525 - 1065 m
(Main Biome)
Lost River Mountains
Corridor
525 - 1065 m
(Main Biome)
Lost River Tree
Cove
0 - 380 m
Mountains Caves
170 - 250 m
Mushroom Forest
Caves
10 - 75 m
Safe Shallows Caves
200 - 340 m
Sea Treader's Tunnel
Caves
195 - 370 m
Underwater Islands
Caves
Altitude
Biome (Land)
≥ 0 m
Crash Zone Spit
≥ 0 m
Floating Island
≥ 0 m
Mountain Island
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