Leviathan Class6 entries
Leviathan
Featured
Reaper Leviathan
Macroconus Imperator · Crash Zone & Dunes · 0–500m
The most iconic threat in Subnautica. A 55-metre aggressive predator equipped with four mandible appendages capable of grabbing and destroying the Seamoth outright. Found patrolling the Crash Zone and Dunes in groups of up to three. Its roar can be heard through the hull of any vehicle — consider it a warning.
55mLength
11In world
500mMax depth
500–1040m
Ghost Leviathan
Leviathan · Bioluminescent
~107m
Lost River, Grand Reef
Enormous translucent leviathan found in the Lost River and Grand Reef. Its juveniles haunt open water biomes. Unlike the Reaper, it cannot grab vehicles but deals consistent electric damage on contact.
900–1700m
Sea Dragon Leviathan
Leviathan · Volcanic
~112m
Lava Zones
The largest predator in the game and the only creature that can pick up and throw the Prawn Suit. Found exclusively in the Active Lava Zone. Spits fireballs and causes massive structural damage on impact.
1400–1700m
Sea Emperor Leviathan
Leviathan · Telepathic
~200m
Primary Containment
The oldest living creature on 4546B. Completely passive and central to the main story — the only source of Enzyme 42 needed to cure the Kharaa bacterium. Communicates telepathically with the player.
300–900m
Crabsquid
Large Fauna · EMP Emitter
~3m
Lost River, Deep Grand Reef
Highly aggressive deep-water predator that releases an electromagnetic pulse, disabling the Seamoth, Prawn Suit HUD, and all equipped tools for several seconds. Approach only with the Perimeter Defense System active.
Sea Treader Leviathan
Large Fauna · Sea Treader
~5m
Sea Treaders Path
A massive, docile Leviathan that roams the Sea Treaders Path. Known for its gentle nature and the valuable resources it yields when harvested.
Large Fauna8 entries
0–50m
Stalker
Large Fauna · Tool User
~3m
Kelp Forest, Safe Shallows
Aggressive shallows predator known for collecting metal salvage. Stalkers are the only creatures that can pick up and relocate Metal Salvage. Can be fed Raw Meat to obtain their shed teeth — a valuable resource for Aerogel.
30–200m
Sand Shark
Large Fauna · Ambush
~4m
Grassy Plateaus, Dunes
Powerful burrowing predator that hides beneath sandy floors before lunging. Most commonly encountered in the Grassy Plateaus. The Heavy Charge Fin upgrade allows it to deliver particularly high burst damage per bite.
150–400m
Bone Shark
Large Fauna · Pack Hunter
~4.5m
Blood Kelp, Mountains
Recognisable by the exposed ribcage-like plating on its flanks. Bone Sharks are persistent mid-range threats often encountered in groups. They can dent and damage the Seamoth significantly with repeated hits.
200–1000m
Warper
Synthetic Fauna · Precursor
~2.5m
Blood Kelp, Lost River
Genetically-engineered Precursor guardians that teleport to ambush infected lifeforms — including the player. Capable of teleporting the player out of their Seamoth mid-dive. Cannot be scanned without effort as they phase in and out.
200–500m
Ampeel
Large Fauna · Electric
~8m
Underwater Islands, Bulb Zone
Eel-like ambush predator that emits powerful electric shocks, inflicting heavy damage through vehicle hulls. Particularly dangerous in tight cave systems where maneuvering out of range is limited.
0–200m
Crashfish
Small Fauna · Explosive
~0.5m
Safe Shallows caves
Small, passive-until-disturbed creature that nests in shallows cave systems. When startled, it charges the player and self-destructs in a high-damage explosion. Can be outrun but not outgunned — move immediately upon spotting one.
0–100m
Gasopod
Large Fauna · Toxic
~3.5m
Safe Shallows, Grassy Plateaus
A large, slow-moving creature that releases toxic gas pods when threatened. Not aggressive by default, but its clouds cause rapid health drain. Gas Pods it drops can be harvested and repurposed as a crafting ingredient.
100–300m
Biter
Small Fauna · Nuisance
~0.6m
Blood Kelp Zone
Small but persistent fish that nip the player for minor damage. Not threatening alone, but their schooling behaviour makes them a constant nuisance in the Blood Kelp Zone. Easily scared off with the Repulsion Cannon.
Passive & Harvestable6 entries
0–300m
Peeper
Small Fauna · Food Source
The most common fish in the game and a staple food source. A fully grown Peeper restores 12 food and 3 water when eaten raw. Can be raised in the Alien Containment for a renewable food supply.
0–200m
Holefish
Small Fauna · Food Source
Named for its distinctive hollow centre. Found in the Safe Shallows and Grassy Plateaus. Provides minimal food value but can serve as an early emergency ration before a reliable water/food supply is established.
0–100m
Boomerang
Small Fauna · Fast Swimmer
Thin, crescent-shaped fish known for its rapid, erratic swimming pattern. Found in shallow open water. Difficult to catch by hand — the Propulsion Cannon is the most reliable tool for harvesting them quickly.
100–500m
Reginald
Small Fauna · High Value Food
The highest food-value fish in the base game, restoring 23 food raw or 28 cooked. Found in the Kelp Forest at mid depth. Raising them in Alien Containment provides the most calorie-efficient farming solution available.
Egg locations vary
Cuddlefish
Fauna · Companion
A rare, tameable companion creature hatched from one of five hidden eggs across the map. Follows the player, mimics gestures, and can be stored in the Alien Containment. Offers no gameplay advantage — only companionship.
200–400m
Sea Treader Leviathan
Leviathan · Passive Grazer
A large, six-legged leviathan that walks the seafloor in the Sea Treader's Path biome. Completely passive and does not attack the player. Kicks up limestone and sandstone chunks as it walks — a reliable passive resource farm.
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