Subnautica 2 Creatures — Full Fauna Database, Behavior & Survival Tips

Subnautica 2 creatures are more varied and intelligent than in any previous entry in the series. With over 35 species in the Early Access build and approximately 80 planned for 1.0, understanding Subnautica 2 creatures is essential for survival. This Subnautica 2 creatures guide catalogs every fauna species currently in the game, explains creature behavior patterns, provides evasion strategies for aggressive Subnautica 2 creatures, and covers the new ecosystem interactions that make creature behavior more dynamic. Whether you are a marine biologist at heart or just want to avoid becoming a leviathan's lunch, this Subnautica 2 creatures guide has the information you need.

Passive and neutral creatures

Many Subnautica 2 creatures are harmless and can be approached safely. The Peeper is the most common passive Subnautica 2 creature, a small fish found in all shallow biomes that serves as a food source and biofuel. Boomerang Fish, Bladderfish, and Garryfish round out the passive Subnautica 2 creatures in the Safe Shallows. The Gasopod, a new passive creature in Subnautica 2 creatures, releases harmless gas bubbles when startled — these bubbles can be collected and used in bioreactors. The Glider Ray is the most useful passive Subnautica 2 creature: once hatched from an egg, it becomes rideable and serves as the fastest travel mount in the game. Neutral Subnautica 2 creatures like the Sand Shark and Bone Shark are not aggressive by default but will attack if you get too close or if you attack them first. Recognizing body language in Subnautica 2 creatures helps predict aggression — a Bone Shark that turns to face you is preparing to charge. Learning which Subnautica 2 creatures are passive versus neutral is one of the first survival skills new players should develop.

Aggressive creatures and leviathans

Aggressive Subnautica 2 creatures include the Crashfish (explosive nest defender found in Safe Shallows caves), the Stalker (a territorial predator in Kelp Caves that collects metal scraps), and the Crabsquid (an electromagnetic creature in deep biomes that disables vehicle systems). The most feared Subnautica 2 creatures are the leviathan class. The Reaper Leviathan returns in Subnautica 2 creatures as an apex predator in the Dunes and Mountains biomes — its distinctive roar is the most important audio cue to learn. The Ghost Leviathan patrols the Deep Zone and Void areas. New leviathan Subnautica 2 creatures include the Mantis Leviathan (a crustacean leviathan in the Thermal Spires that ambushes from terrain cover) and the Serpent Leviathan (an eel-like predator in the Jellyshroom Caves). Leviathan Subnautica 2 creatures have patrol routes that can be learned and predicted over time. The Stasis Rifle is the most reliable tool for dealing with aggressive Subnautica 2 creatures — freezing a leviathan gives you 30 seconds of safe passage. In co-op, one player in a Prawn Suit can tank leviathan aggro while others complete objectives.

Scanning and ecosystem data

Scanning Subnautica 2 creatures with the Scanner provides valuable data entries and completes the creature codex. Each Subnautica 2 creature scan adds data to your PDA detailing diet, behavior, size, and bioluminescence patterns. Scanning all leviathan-class Subnautica 2 creatures unlocks the Leviathan Scholar achievement. Some Subnautica 2 creatures have unique behaviors triggered by specific player actions — the Gasopod releases harvestable gas when chased, the Cuddlefish (a rare passive creature) follows the player when fed, and the Crabsquid is attracted to vehicle lights. Egg collection is a significant aspect of Subnautica 2 creatures exploration: each species egg can be collected and hatched in an Alien Containment unit, enabling creature farming and mount acquisition for rideable Subnautica 2 creatures. The Scanner Room can be upgraded with a Creature Detection range upgrade that reveals nearby Subnautica 2 creatures on your HUD — essential for locating rare species or avoiding leviathan patrol routes.