Subnautica Fauna Bestiary: Every Creature, Habitat, and Stat

Planet 4546B is gorgeous on the surface and a horror show twenty meters down. The same ocean that throws Peepers at your visor will, three biomes deeper, throw a Reaper Leviathan at your face. Knowing which creature is which, where it lives, and how hard it bites is the difference between a productive scan run and a swim back to the lifepod in your underwear.

This bestiary covers every fauna species on Planet 4546B, sorted by category, with biomes, health, damage values, energy yield, and the small details that decide whether a creature is dinner, decor, or doom.

The Subnautica Bestiary at a Glance

Fauna on 4546B ranges from finger-length Rockgrubs to leviathans long enough to dwarf the Cyclops. Despite the lingering Kharaa Bacterium, evolution kept producing weirdly Earth-like silhouettes through convergent design. Scan anything that holds still long enough with a Handheld Scanner to log it into your PDA.

Note: the species below are from the original Subnautica. Creatures introduced in Below Zero are not included here.

Carnivores

Every carnivore in this section is hostile by default. Spotting one is your cue to fire up the propulsion cannon, pull out the Stasis Rifle, or simply leave.

Ampeel

A serpentine eel built like a power cable. The Ampeel's segmented prongs throw off bio-electricity, its dorsal side is green, its belly tan, and its turquoise eyes lock on the moment you intrude. It glides peacefully until provoked, then surrounds itself with arc discharges that chew through a Seamoth in seconds. Stasis Rifle works wonders. Once killed, it stays dead.

Locations

• Blood Kelp Caves
• Blood Kelp Zone
• Bulb Zone

Stats

• Health: 3000
• Damage: Bite 45, Shock 15
• Active During: Cathemeral (Day and Night)
• Energy Value: 770

Biter

Picture an anglerfish, a tadpole, and a pack of velociraptors signed onto the same lease. Biters have razor teeth, nostril nubs, dorsal and caudal fins, a red back, a grayish-blue belly, and a forehead growth they use to lock onto prey. They are fast, territorial, and travel in clusters. They will absolutely commit to nibbling you if you cross their patrol.

Locations

• Crash Zone Mesas
• Grassy Plateaus
• Jellyshroom Cave
• Mountains
• Mountains Caves

Stats

• Health: 10
• Damage: Bite 7
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Blighter

A Biter that took a wrong turn into the Blood Kelp and never recovered. Blighters are paler, gaunter, and glow a sickly red. Their massive muscles demand constant feeding, but their blindness keeps their aggro range short. They hunt solo, make uncomfortable noises, and bite anyone who blunders within range.

Locations

• Blood Kelp Caves
• Blood Kelp Zone

Stats

• Health: 10
• Damage: Bite 7
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Boneshark

A gray, hard-plated shark wearing its own teeth as exterior decor, with orange head markings and reflective green slit-pupil eyes. Bonesharks eat smaller fish, sometimes each other, and screech as they charge. A Repulsion Cannon or a well-placed Creature Decoy buys you the seconds you need.

Locations

• Bulb Zone
• Crag Field
• Crash Zone
• Crash Zone Mesas
• Grand Reef
• Mushroom Forest
• Underwater Islands
• Underwater Islands Caves

Stats

• Health: 200
• Damage: Bite 30
• Active During: Cathemeral (Night and Day)
• Energy Value: 630

Crabsnake

Ambush specialist with a pink body, purple dorsal growths, and bioluminescent fins. Crabsnakes nest inside Jellyshrooms and burst out the moment something tasty floats by. While tucked into a mushroom they shrug off the Stasis Rifle. They also lay eggs there and retreat back inside when wounded.

Locations

• Jellyshroom Cave

Stats

• Health: 300
• Damage: 35
• Active During: Cathemeral (Day and Night)
• Energy Value: 700

Crabsquid

A translucent bulb of a body, blue saucer eyes, horseshoe-crab legs tipped with fins, and a deeply annoying signature move: an EMP blast that kills your headlights, your scanner, and your faith in your equipment. Crabsquids inflate and deflate to swim, get angry at any light source, and can be hatched in an Alien Containment as a guardian pet. Hear loud clicks? You are not alone.

Locations

• Deep Grand Reef
• Northern Blood Kelp Caves
• Northern Blood Kelp Zone
• Lost River
• Corridor
• Ghost Canyon

Stats

• Health: 500
• Damage: Slash 40
• Active During: Cathemeral (Day and Night)
• Energy Value: 770

Crashfish

Nature's torpedo. The oval-bodied, red-and-cream Crashfish lives inside Sulfur Plants and launches itself at anything that gets too close, exploding on contact. A Seamoth can be destroyed; a Prawn Suit will dent. The trick when scanning is freezing them with a Stasis Rifle. Open their plant home rudely and they detonate. Eggs near explosions are wiped. Reared specimens explode the moment they leave the Alien Containment, and no, the Propulsion Cannon will not pick them up as ammo.

Locations

• Kelp Forest Caves
• Safe Shallows
• Safe Shallows Caves

Stats

• Health: 25
• Damage: Explosion damage scaled by distance
• Active During: Cathemeral (Day and Night)
• Energy Value: 560

Lava Lizard

A hefty reptile with scaly green-and-beige skin, two silver eyes, and a mouth full of teeth. Lava Lizards swim through molten zones unbothered, build armor on their bodies, and spit projectiles in addition to biting. They hate Warpers and laugh at the Thermoblade, so do not bring a thermal knife to a lava fight.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Inactive Lava Zone Corridor
• Lava Castle
• Lava Lakes

Stats

• Health: 200
• Damage: Bite 30, Spit 50
• Active During: Cathemeral (Day and Night)
• Energy Value: 560

Mesmer

The Mesmer is the prettiest threat in the game. Ridged body shimmering purple, teal fins, and tilde-shaped pupils inside a bulky head that hypnotizes you into swimming straight into its mouth. Spiked tentacles do the rest. Even killing one mid-hypnosis does not break the trance instantly. To escape: swim backward, look away, or grab a Propulsion or Repulsion Cannon.

Locations

• Bulb Zone
• Crag Field
• Grand Reef
• Kelp Forest Caves
• Lost River
• Bones Field
• Northeastern Mushroom Forest

Stats

• Health: 100
• Damage: Bite 35
• Active During: Cathemeral (Day and Night)
• Energy Value: 560

River Prowler

A transparent, eel-thin predator with a visible spine, a red head, yellow eyes, and four trailing tendrils. River Prowlers emit a faint white glow and have a skeletal silhouette with no visible organs. They attack with tendrils and a Reaper-like jaw, and announce themselves with hisses and snarls.

Locations

• Lost River
• Bones Field
• Ghost Forest
• Junction
• Mountains Corridor

Stats

• Health: 200
• Damage: Bite 30
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Sand Shark

A segmented, plated predator with a grey-violet back, pink belly, four orange eyes, and stubby underside legs. Sand Sharks bury themselves and burst from the seabed in a cloud of silt. They growl before the lunge, which gives you a slim window to either back off or get punctured. They are fast in a straight line but lose to sudden direction changes.

Locations

• Crash Zone
• Dunes
• Grassy Plateaus

Stats

• Health: 250
• Damage: Bite 30
• Active During: Cathemeral (Day and Night)
• Energy Value: 630

Stalker

Gharial-shaped, blue-green with dark blue and purple patterns, purple-tipped fins, and a whale-like tail. Stalkers have an unhealthy obsession with shiny metal scrap and will drop teeth while carrying it (their teeth are extremely useful, do not ignore this). They will batter the Prawn Suit without damaging it, get nastier at night near Kelp Forests, and flee if knifed. They also guard their eggs jealously.

Locations

• Crash Zone
• Kelp Forest
• Kelp Forest Caves

Stats

• Health: 300
• Damage: Bite 30
• Active During: Cathemeral (Day and Night)
• Energy Value: 560

Warper

A flat-headed, bioluminescent, cloaked silhouette with spiked arms and tentacle propulsion. Warpers exist to police infection: they teleport in, fire warp projectiles, summon nearby aggressive fauna, and occasionally pluck you straight out of your vehicle. The angrier your infection level, the more interested they become. Cure yourself with Baby Leviathan Enzymes and they downgrade you from priority target to ambient threat.

Locations

• Blood Kelp Zone
• Bulb Zone
• Deep Grand Reef
• Dunes
• Grand Reef
• Inactive Lava Zone
• Inactive Lava Chamber
• Inactive Lava Zone Corridor
• Lava Castle
• Lava Lakes
• Lost River
• Junction
• Mountains
• Sea Treader's Path

Stats

• Health: 100
• Damage: Claw Attack 23, 42, or 69; Warp Projectile 10
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Herbivores

The peaceful menu. Most are harmless. A couple will absolutely fight back if you forget your manners.

Bladderfish

A narrow body, translucent bladders top and bottom, a bright orange head with big eyes, and no mouth. The bladders glow pink. Bladderfish tend to drift behind Reefback Leviathans and bolt the moment you get close.

Locations

• Dunes
• Grand Reef
• Grassy Plateaus
• Kelp Forest
• Mushroom Forest
• Safe Shallows
• Lost River
• Tree Cove

Stats

• Health: 30
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 210

Crafting Uses

Fabricator recipes:

• Filtered Water
• Cooked Bladderfish
• Cured Bladderfish (with Salt Deposit)
• Air Bladder (with Silicone Rubber)

Boomerang

A yellow-green fish in the shape of, yes, a boomerang. Dark green stripes, cyan-glowing fins, four eyes, sharp coral-eating teeth. It sways while swimming, scampers from humans, and tucks itself into caves or against the seabed once the sun drops.

Locations

• Bulb Zone
• Crag Field
• Crash Zone
• Deep Grand Reef
• Dunes
• Grand Reef
• Grassy Plateaus
• Kelp Forest
• Mountains
• Mountains Caves
• Safe Shallows
• Safe Shallows Caves
• Sea Treader's Path
• Sea Treader's Tunnel Caves
• Underwater Islands

Stats

• Health: 30
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 280

Crafting Uses

Fabricator recipes:

• Cooked Boomerang
• Cured Boomerang (with Salt Deposit)

Crimson Ray

A Ghostray's lava-loving cousin. Same shape, totally different look: opaque body, dark red top, pale yellow underside, glowing yellow gills. Crimson Rays cruise the Inactive Lava Zone and Lava Lakes in groups, sometimes giving Lava Lizards a wide berth and otherwise ignoring you completely.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Lava Lakes

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Cuddlefish

The friendliest face on the planet. Hatch them from Cuddlefish Eggs and you get a grey, white-bellied, bug-eyed companion with stubby pectoral fins, tentacle propulsion, and an inventory of chirps, high-fives, and full-on hugs. They follow on command or stay parked. Treat them well.

Locations

• N/A

Stats

• Health: 10,000
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 210

Eyeye

A tiny pale-green fish that is basically one big eyeball with four bioluminescent fins. It cruises slowly, scans its surroundings, and panics when noticed. Other species bully it by ramming it at full speed.

Locations

• Bulb Zone
• Bulb Zone Caves
• Crash Zone
• Dunes
• Grand Reef
• Jellyshroom Cave
• Kelp Forest
• Kelp Forest Caves
• Sea Treader's Path
• Sea Treader's Tunnel Caves

Stats

• Health: 30
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 420

Crafting Uses

Fabricator recipes:

• Cooked Eyeye
• Cured Eyeye (with Salt Deposit)

Garryfish

Long, slim, bright yellow body with stripes, stalked eyes on top of its head, a small mouth, and maroon fins with a red glow. Solitary and slow, the Garryfish glides past players without reacting.

Locations

• Crash Zone Mesas
• Dunes
• Safe Shallows
• Safe Shallows Caves
• Underwater Islands

Stats

• Health: 30
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 420

Crafting Uses

Fabricator recipes:

• Cooked Garryfish
• Cured Garryfish (with Salt Deposit)

Gasopod

A bulbous, pinniped-shaped creature with leathery scales, a spiky gas-mask face, and paddle flippers. The back is bluish-gray, the belly aqua-green, and the tail hosts green-yellow pods. Touch one the wrong way and it releases poisonous gas pods that linger and chew through your health. A Stasis Rifle or floaters keep it locked down.

Locations

• Crash Zone Mesas
• Dunes
• Safe Shallows

Stats

• Health: 300
• Damage: Consistent damage while inside the gas cloud
• Active During: Diurnal (Day Only)
• Energy Value: 700

Ghostray

A translucent manta with cyan bioluminescence and two glowing red organs tucked behind its eyes. Internally it shares anatomy with the Jellyray, externally with the Crimson Ray. Pure ambience, no aggression.

Locations

• Lost River
• Ghost Canyon
• Ghost Forest
• Tree Cove
• Junction
• Mountains Corridor

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Holefish

A small fish with a blue-and-purple head and tail, a brown body, yellow stripes and dots, and a tail with a literal hole in it. Holefish are jittery cave dwellers that flee at the slightest provocation, often hanging out near Reefback Leviathans and other prey species.

Locations

• Bulb Zone Caves
• Crash Zone
• Mushroom Forest Caves
• Safe Shallows
• Safe Shallows Caves

Stats

• Health: 30
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 280

Crafting Uses

Fabricator recipes:

• Cooked Holefish
• Cured Holefish (with Salt Deposit)

Hoopfish

A slender fish that fades from dark violet to blue toward the head, with neon green eyes, a small dorsal fin, and a purple caudal fin that loops back around. Its standout feature is the green bioluminescent antennae forming a halo around its tail. Hoopfish swim in slow groups, often shadowing Reefback Leviathans.

Locations

• Bulb Zone
• Crag Field
• Dunes
• Grand Reef
• Grassy Plateaus
• Kelp Forest
• Kelp Forest Caves
• Mountains
• Sea Treader's Path
• Sea Treader's Tunnel Caves
• Underwater Islands

Stats

• Health: 20
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 210

Crafting Uses

Fabricator recipes:

• Cooked Hoopfish
• Cured Hoopfish (with Salt Deposit)

Hoverfish

A teardrop body on six legs, black eyes, a broad froggy mouth. Light green back with blue-white speckles, pale turquoise legs, yellow pads, and a strong bioluminescent glow.

Locations

• Crash Zone
• Crash Zone Mesas
• Kelp Forest
• Kelp Forest Caves

Stats

• Health: 30
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 350

Crafting Uses

Fabricator recipes:

• Cooked Hoverfish
• Cured Hoverfish (with Salt Deposit)

Jellyray

A translucent ray that glows violet with pink dorsal patterns and shifts to blue elsewhere. Eight tentacles per side, a long tail, six circle structures along each flank that might be eyes. Jellyrays are curious about light, swing in to investigate, then drift off.

Locations

• Deep Grand Reef
• Mushroom Forest

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 350

Magmarang

A Boomerang reskinned for lava country. Yellow sclera, dark orange rings, dark red body with silver-gray markings, fins glowing orange. Quick swimmer in the Inactive Lava Zone, equally good at fleeing players.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Inactive Lava Zone Corridor
• Lava Castle
• Lava Lakes

Stats

• Health: 30
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 280

Crafting Uses

Fabricator recipes:

• Cooked Magmarang
• Cured Magmarang (with Salt Deposit)

Oculus

Think Peeper, scaled up, dressed in turquoise with purple markings. The Oculus skips the beak entirely, runs on bioluminescent magenta eyes, and uses tube-like organs for propulsion. Forms shoals in Jellyshroom Caves, clicks as it swims, and bolts the second a flashlight finds it.

Locations

• Jellyshroom Cave

Stats

• Health: 20
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 630

Crafting Uses

Fabricator recipes:

• Cooked Oculus
• Cured Oculus (with Salt Deposit)

Peeper

The mascot. Small blue body, greenish tail, yellow beak-like mouth, comically large flat eyes with brown irises. Peepers jet around with backward-facing thrusters, leap out of the water, and chirp constantly. Watch one for ten seconds and a Stalker probably eats it. Cycle of life.

Locations

• Bulb Zone
• Crash Zone
• Crash Zone Mesas
• Dunes
• Deep Sparse Reef
• Grand Reef
• Kelp Forest
• Safe Shallows
• Sparse Reef
• Mountains
• Northeastern Mushroom Forest
• Northeastern Mushroom Forest Caves
• Underwater Islands

Stats

• Health: 20
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 420

Crafting Uses

Fabricator recipes:

• Cooked Peeper
• Cured Peeper (with Salt Deposit)

Rabbit Ray

Flat little body, big eyes, orange head protrusions, glowing blue outlines on the wings and matching dorsal spots. Rabbit Rays glide near their nests, emit soft cries when approached, and tend to be one of the calmer Safe Shallows residents.

Locations

• Crash Zone
• Crash Zone Mesas
• Kelp Forest
• Safe Shallows

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 420

Red Eyeye

The Eyeye's hot cousin. Red, orange, and yellow iris, blue markings, bright orange bioluminescent fins. Lives in the Inactive Lava Zone, swims away from players, and is bullied by the same neighbors that pick on its cooler-water relative.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Inactive Lava Zone Corridor
• Lava Castle
• Lava Lakes

Stats

• Health: 25
• Damage: N/A
• Active During: Diurnal (Day Only)
• Energy Value: 420

Crafting Uses

Fabricator recipes:

• Cooked Red Eyeye
• Cured Red Eyeye (with Salt Deposit)

Reginald

A dull-green fish, big eyes, a glowing purple fin, and a permanent case of stage fright. Reginalds zip around biomes in groups of four or five, often within a Reefback Leviathan's slipstream, and bolt at any approach.

Locations

• Crag Field
• Crash Zone
• Crash Zone Mesas
• Deep Grand Reef
• Deep Sparse Reef
• Grand Reef
• Grand Reef Caves
• Grassy Plateaus
• Lost River
• Ghost Canyon
• Ghost Forest
• Junction
• Mountains Corridor
• Mountains Caves
• Mountains
• Sea Treader's Path
• Sparse Reef

Stats

• Health: 30
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 490

Crafting Uses

Fabricator recipes:

• Cooked Reginald
• Cured Reginald (with Salt Deposit)

Skyray

A bird-shaped surface dweller. White wing feathers, a black head with chest and wing tips connected by a thin line, white eyes, a black beak, bioluminescent chest markings. Skyrays cluster near specific landmasses and rest on island ground. Notably, one of the few fauna species that drowns underwater.

Locations

• Aurora
• Crash Zone
• Floating Island
• Mountain Island
• Safe Shallows

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Spadefish

Flat body, long dorsal fin, two small pectorals, a single split-pupil eye, a wide pointed-tooth mouth, three gill slits. Teal with bright patches that glow after dark. Spadefish school up, often shadow Reefback Leviathans, and will dent a Seamoth if you ram them. Pacifist, sure, but not weightless.

Locations

• Deep Sparse Reef
• Dunes
• Grand Reef
• Grassy Plateaus
• Mushroom Forest
• Mushroom Forest Caves
• Sea Treader's Path
• Sea Treader's Tunnel Caves
• Sparse Reef
• Underwater Islands

Stats

• Health: 30
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 420

Crafting Uses

Fabricator recipes:

• Cooked Spadefish
• Cured Spadefish (with Salt Deposit)

Spinefish

A Hoopfish silhouette wearing a completely different paint job. Translucent body, white ribcage stripes, tiny red dots near the eyes and tail, yellowish-green eyes, a dull red caudal fin. Slow, shoal-forming, lives in the Blood Kelp, and breaks formation the second a player drifts in.

Locations

• Blood Kelp Zone
• Blood Kelp Caves
• Bone Fields Caves
• Lost River
• Bone Fields
• Corridor
• Ghost Canyon
• Ghost Forest
• Junction
• Mountains Corridor

Stats

• Health: 20
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 210

Crafting Uses

Fabricator recipes:

• Cooked Spinefish
• Cured Spinefish (with Salt Deposit)

Parasites and Scavengers

The odd lot. Some can be scanned and not much else, others will latch onto you or your vehicle and ruin a perfectly good expedition.

Amoeboid

A gelatinous drifter with a blue interior, tiny cyan dots, large uneven patches, and tendrils that anchor to a rough outer skin. No interaction beyond scanning or moving them around with a Propulsion Cannon.

Locations

• Lost River
• Bones Field
• Ghost Canyon
• Ghost Forest
• Junction
• Mountains Corridor
• Tree Cove

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Ancient Floater

The geriatric, non-interactive version of the Floater. Found anchored to Floating and Underwater Islands. According to in-game lore, Ancient Floaters matured alongside the islands themselves, dragging land up out of the seabed, enriching sunlight, and pushing plant life forward. Immature ones sink and feed on organic debris until they rise. Some have reportedly latched onto leviathan-class fauna and forced them to the surface to suffocate.

Locations

• Floating Island
• Northern Blood Kelp Zone
• Underwater Islands

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Bleeder

A small parasitic horror with blue tentacles, fangs, a segmented body, and a glowing sac. Bleeders swarm, latch onto your arm, suck blood, and tank your food bar while they're attached. Punch them off or use any tool to dislodge.

Locations

• Aurora
• Deep Sparse Reef
• Kelp Forest
• Kelp Forest Caves
• Lost River
• Bone Fields

Stats

• Health: 10
• Damage: Leech 5
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Blood Crawler

A Cave Crawler that traded its life savings for longer, spike-covered legs. Blood Crawlers move in packs through Blood Kelp Caves and the Ghost Forest, scale walls and ceilings, and pile on anyone careless enough to drift through their patrol path.

Locations

• Blood Kelp Caves
• Blood Kelp Zone
• Lost River
• Ghost Forest

Stats

• Health: 50
• Damage: Bite 5
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Cave Crawler

An arthropod-shaped pest with a single glowing eye and segmented limbs. Cave Crawlers cluster, lunge in groups, deal bite damage with knockback, shrug off fire, and don't enjoy meeting a Stasis Rifle or Propulsion Cannon. The best defense is staying mobile and never standing still on a beach.

Locations

• Aurora
• Dunes
• Dunes Caves
• Floating Island
• Mountain Island
• Underwater Islands Caves

Stats

• Health: 50
• Damage: Bite 5
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Floater

A young Ancient Floater. Transparent blue gel body, tentacle arms, and small teeth used to clamp onto anything stationary. Floaters provide buoyancy to whatever they grip, which is great for terraforming and terrible for any Seamoth or Cyclops that becomes the unwilling host.

Locations

• Grassy Plateaus
• Safe Shallows

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 50

Lava Larva

The parking ticket attendants of the Inactive Lava Zone. Dark violet, flattened, striped, with antennae and a glowing orange mouth. Lava Larvae attach to vehicles and quietly drain power cells. Counter-measures: weapons, freezing, scare tactics, or luring them to Lava Lizards (which happily eat them off your vehicle without damaging the hull). Removing the power cells or cutting the vehicle's energy also makes them swim off.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Inactive Lava Zone Corridor
• Lava Lakes

Stats

• Health: 100
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Rockgrub

A tiny translucent grub glowing faint green, with swimming fins, a larger tail flipper, five appendages per side, and a small circular mouth full of even smaller teeth. Pure ambience species.

Locations

• Bulb Zone Caves
• Dunes
• Dunes Caves
• Deep Sparse Reef
• Grassy Plateaus Caves
• Mountains Caves

Stats

• Health: 30
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Shuttlebug

Three long flippers, three legs, one big eye, bright orange bioluminescent glow along the flipper sides. Surface variants swim like normal life forms; cave variants are the odd ones, hovering in place instead of moving.

Locations

• Bulb Zone
• Crag Field
• Crash Zone
• Deep Sparse Reef
• Dunes
• Dunes Caves
• Grassy Plateaus Caves
• Mountains Caves
• Mountains
• Mushroom Forest Caves
• Safe Shallows Caves
• Sea Treader's Path
• Sea Treader's Tunnel Caves
• Sparse Reef

Stats

• Health: 50
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Harvestable Fauna

These are the species you visit deliberately, knife or growbed in hand. They sit still, drop useful materials, and occasionally bubble breathable air.

Brain Coral

A purple hemisphere riddled with circular protrusions that puff oxygen bubbles out of green pores. Three bubbles spawn per cycle, and each is a portable lungful. You can also plant Brain Corals in an Exterior Growbed for a permanent breathing station.

Locations

• Bulb Zone
• Bulb Zone Caves
• Crash Zone
• Crash Zone Mesas
• Dunes
• Grassy Plateaus
• Kelp Forest
• Kelp Forest Caves
• Mountains
• Mushroom Forest
• Mushroom Forest Caves
• Reefback Leviathan
• Safe Shallows
• Safe Shallows Caves

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 70
• Harvestable Resource: Oxygen

Shell Plate

Three subtypes (Coral, Slanted, and Veined) all coughing up Coral Tube Samples when knifed. Coral plates are olive and crescent-shaped, Slanted are dark green and vary in size, Veined are oval with yellowish brown branching patterns and a slightly rough finish.

Locations

• Bulb Zone
• Grassy Plateaus
• Grassy Plateaus Caves
• Mountains Caves
• Mushroom Forest Caves
• Safe Shallows

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: Coral Tube Sample

Earthen Coral Tubes

Light brown, tubular, decorative-only. They cannot be harvested for samples but can be picked up whole or destroyed in clusters.

Locations

• Bulb Zone Caves
• Underwater Islands
• Underwater Islands Caves

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: N/A

Giant Coral Tubes

Massive, durable, sample-rich coral towers with a 50,000 HP pool, scattered across various biomes. You can swim inside the larger ones. Some contain Veined Nettles and Acid Mushrooms, and the Safe Shallows specimens occasionally hide raw resources or even small caves.

Locations

• Crash Zone
• Kelp Forest
• Safe Shallows
• Safe Shallows Caves

Stats

• Health: 50,000
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: Coral Tube Sample

Pyrocoral

A rare Lost River species. Looks like mossy growth on a grey rock, with green coral wound around it and a faint yellow glow.

Locations

• Lost River
• Corridor
• Mountains Corridor

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: N/A

Table Coral

Disk-shaped corals in red, green, blue, and purple variants, with the red ones being the most common. Small luminescent jewel-like bumps on the top and bottom faces, attached to walls, pulsing.

Locations

• Bulb Zone
• Crash Zone
• Crash Zone Mesas
• Grassy Plateaus
• Lost River
• Junction
• Mountains Corridor
• Mushroom Forest
• Reefback Leviathan
• Safe Shallows

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: Table Coral Sample

Tree Mushroom

A towering arboreal coral with branching mushroom caps, exclusive to the Mushroom Forest. Some hosts Sandstone Outcrops and Lithium. Cut the caps (or just collide with them) to harvest Fungal Samples. The trunks are full of Tree Leeches.

Locations

• Mushroom Forest

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A
• Harvestable Resource: Fungal Sample

Leviathans

The headliners. Babies measure around five feet (1.5 m). The adults stretch as long as 656 feet (200 m). A handful of them are genuinely pleasant company. Most are not.

Ghost Leviathan

The adult Ghost Leviathan. Transparent outer shell, muscular blue core, bioluminescent eyes and fins, head sail, and hammerhead-shark-style structures. The second largest hostile creature on the planet. It rams targets, hauls submarines around like toys, and likes the Crater Edge in particular.

Locations

• Crater Edge
• Grand Reef
• Northern Blood Kelp Zone

Stats

• Health: 8,000
• Damage: Bite 14 to 250
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Ghost Leviathan Juvenile

Smaller version of the adult, around 63% size and dealing roughly 34.5% less damage. Spawns in the Lost River, with Tree Cove as their nursery. They feed on Ghostrays and River Prowlers until they get big enough to migrate to deeper biomes.

Locations

• Lost River
• Bone Fields
• Ghost Forest
• Mountains Corridor

Stats

• Health: 8,000
• Damage: Bite 9 to 220
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Reaper Leviathan

The one that lives in your nightmares. A massive body with red fins, four hooked mandibles, and a roar that doubles as echolocation. Twenty-five spawn across the map. Reapers cruise the open water without hugging the seafloor, which means surface swimming sometimes flies under their radar. They flinch when damaged, won't respawn once killed, and can shave 80% off your health in one bite. A Reinforced Dive Suit softens the blow. Tackle them with friends on a Subnautica multiplayer server if you want a fairer fight.

Locations

• Crash Zone
• Crash Zone Mesas
• Dunes
• Mountains
• Bulb Zone

Stats

• Health: 5,000
• Damage: Bite 20 to 220; Grab kills instantly
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Reefback Leviathan

Floating mountains with shells. Passive, gigantic, the third-largest peaceful creature in the game. Dark-blue carapaces, teal coral patches, and a habit of drifting in pods while exchanging low-frequency calls. Hit one and it briefly speeds up.

Locations

• Blood Kelp Zone
• Bulb Zone
• Crag Field
• Dunes
• Grassy Plateaus
• Mushroom Forest
• Sparse Reef
• Underwater Islands

Stats

• Health: 10,000
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 840

Reefback Leviathan Juvenile

Same creature, roughly a quarter the size of an adult. Same behavior, same biomes. You'll usually spot them swimming alongside the grownups.

Locations

• Blood Kelp Zone
• Bulb Zone
• Crag Field
• Dunes
• Grassy Plateaus
• Mushroom Forest
• Sparse Reef
• Underwater Islands

Stats

• Health: 10,000
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: 840

Sea Dragon Leviathan

A slimmer, scarier-looking relative of the Sea Emperor. Dark green and purple, fast, and very strong. Its repertoire includes swatting players, swallowing them, and spitting molten rocks. It flinches when hit, occasionally gets stuck on walls (which does not make it any safer), and resists the Thermoblade.

Locations

• Inactive Lava Zone
• Inactive Lava Chamber
• Lava Lakes

Stats

• Health: 5,000
• Damage: Bite 10 to 20 (instant kill without protection); Swat 40 to 250; Fire Breath 12 to 500
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Sea Emperor Leviathan

The largest known leviathan in the game and, against all expectations, a pacifist. Stocky armored body, tentacles dotted with bioluminescent bulbs, and paddle-shaped arms. It speaks to you telepathically, which causes the same screen distortions Warpers and Mesmers trigger. It also nudges the plot forward, guides you to its eggs, and helps you find an Alien Arch near the Quarantine Enforcement Platform.

Locations

• Primary Containment Facility Aquarium

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Sea Emperor Leviathan Baby

Unhatched offspring of the Sea Emperor. The Precursor Race wanted to use them as a cure for the Kharaa Bacterium, but their containment environment isn't suitable for hatching, so they're stuck waiting. The player crafts Hatching Enzymes to finally release them. The babies look like miniature adults with a few visual tweaks.

Locations

• Primary Containment Facility Aquarium

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Sea Emperor Leviathan Juvenile

The post-hatch teenage phase. Smaller than the adult (85 to 98 meters long) and scattered across deeper biomes once they leave the facility.

Locations

• Crag Field
• Dunes
• Grand Reef
• Mountains
• Northern Blood Kelp Zone

Stats

• Health: N/A
• Damage: N/A
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Sea Treader Leviathan

A defensive leviathan with a barrel torso, double-jointed back legs, and a head full of eyes and feelers. Sea Treaders walk the Grand Reef and Sea Treader's Path in slow migrating herds, calling loudly to one another and pecking aggressors. As they move they sometimes drop Shale Outcrops or, less glamorously, Alien Feces.

Locations

• Grand Reef
• Sea Treader's Path
• Sea Treader's Tunnel Caves

Stats

• Health: 3,000
• Damage: Kick 40; Stomp 40
• Active During: Cathemeral (Day and Night)
• Energy Value: N/A

Final Notes

Keep a scanner charged, a knife sharp, and a Stasis Rifle close. Scan everything that doesn't try to eat you on sight (and a few things that do). The PDA entries unlock blueprints, lore, and a slightly better understanding of why Planet 4546B looks this beautiful and this lethal at the same time.