#Biomes
Distinct underwater biomes, their hazards, and signature resources.
16 field reports in this category
Cave Crawler
The Cave Crawler is an aggressive, cathemeral fauna species found on the Aurora and various islands. It acts as a scavenger, attacking in packs and capable of surviving both underwater and on land.
Logged 5/18/2026
Bulb Zone Caves
The Bulb Zone Caves are a volcanic cave system within the Bulb Zone, characterized by lava rifts, high temperatures, and unique flora. They contain valuable resources like Gold, Ruby, and Diamond, but require a Reinforced Dive Suit to explore safely.
Logged 5/18/2026
Bulb Zone
The Bulb Zone is a deep, sandy biome in Subnautica characterized by blue-purple flora and dangerous fauna. It borders the Crash Zone, Mushroom Forest, and Mountains, serving as a key transition area to the Lost River.
Logged 5/18/2026
Brinicle
Brinicles are hazardous ice formations found in the East Arctic and Sparse Arctic biomes. They descend from icebergs, causing freeze damage to players and trapping larger fauna like Pengwings until they shatter.
Logged 5/18/2026
Boneshark
The Boneshark is a large, highly aggressive fauna species with a thick armored exoskeleton. It primarily inhabits the Underwater Islands, Crag Field, and Bulb Zone biomes, attacking players and vehicles on sight.
Logged 5/18/2026
Blood Kelp Zone
The Blood Kelp Zones are deep, dark biomes in Subnautica characterized by giant Bloodvines and significant hazards. They consist of the Blood Kelp Trench to the southwest and the Northern Blood Kelp Zone to the north, each offering unique resources, wrecks, and dangerous fauna.
Logged 5/18/2026
Blood Kelp Caves
The Blood Kelp Caves are cave systems within the Blood Kelp Zones, characterized by large Bloodroots and hazardous fauna like Blood Crawlers. They serve as a critical resource hub for Uraninite and other materials at depths between 285 and 675 meters.
Logged 5/18/2026
Blood Crawler
The Blood Crawler is an aggressive, cathemeral fauna species found in the Blood Kelp Zone and Lost River. Known for its elongated legs, bioluminescent markings, and ability to climb walls and vehicles, it serves as a territorial scavenger.
Logged 5/18/2026
Biomes (Subnautica)
A comprehensive guide to all biomes in Subnautica, including aquatic zones, islands, cave systems, and mini-biomes on Planet 4546B. Details depth ranges, resources, and points of interest for each area.
Logged 5/18/2026
Biomes (Below Zero)
A comprehensive guide to all biomes in Subnautica: Below Zero, including above-water, aquatic, underwater caves, and mini-biomes. Details depth ranges, resources, and points of interest for each region.
Logged 5/18/2026
Arctic Spires
The Arctic Spires is a large, above-water biome in Subnautica: Below Zero. It features frozen landscapes with massive ice spires, dangerous cold temperatures, and key story elements like the Principal Architect Teleporter.
Logged 5/18/2026
Arctic Kelp Forest
The Arctic Kelp Forest is an aquatic biome in Subnautica: Below Zero, characterized by lush kelp and passive fauna. Located at depths of 0-150 meters, it borders the Twisty Bridges, Sparse Arctic, and Thermal Spires.
Logged 5/18/2026
Arctic Kelp Caves
The Arctic Kelp Caves are dark cave systems located beneath the Arctic Kelp Forests, characterized by large Kelp Roots, Sea Monkey Nests, and various resource outcrops like Calaverite.
Logged 5/18/2026
Arctic
The Arctic is a large aquatic biome in Subnautica: Below Zero, characterized by rugged seafloor terrain and massive icebergs. It consists of two distinct regions: the resource-rich East Iceberg Zone featuring a dormant caldera, and the biologically diverse West Iceberg Zone.
Logged 5/18/2026
Alien Vents
The Alien Vents are a massive Precursor pipe network on Planet 4546B that pumps oxygen-rich water to the Sea Emperor Leviathan's Aquarium. Peepers use these vents to distribute Enzyme 42 and flora seeds, sustaining life on the planet.
Logged 5/18/2026
Alien Arch Caches
Alien Arch Caches are Precursor structures containing teleporters used to obtain Hatching Enzymes. Located in six biomes, they link to the Primary Containment Facility or each other via Ion Cube activation.
Logged 5/18/2026