Below Zero has its own roster — none of the original's Reaper, Sea Dragon or Ghost. Here's every leviathan-class creature and the predators worth fearing: where each one lives, how deadly it is, and exactly how to get past it.
Ordered roughly by how much they'll ruin your day. "Leviathan-class" is the game's largest size tier — but note a couple of big creatures (Squidshark, Cryptosuchus) are large predators, not leviathans, and one famously-named fish isn't a leviathan at all.
| Creature | Type | Where it lives | Threat | How to handle it |
|---|---|---|---|---|
| Shadow Leviathan | Leviathan — aggressive | Crystal Caves & Fabricator Caverns (deep, late-game) | Deadly — attacks on sight, grabs your Seatruck/Prawn and sprays acid | Duck into fissures or behind the large Morganite formations it can't reach. Prawn Suit tanks hits far better than the Seatruck; avoid tight tunnels. |
| Void Chelicerate | Leviathan — aggressive (rare large variant) | World's Edge / the Void, below ~1,700 m | Deadly — biggest creature in the game; up to 3 spawn at once | Just don't swim past the map edge. It doesn't grab vehicles, but the swarm overwhelms you — turn back and ascend fast. |
| Chelicerate | Leviathan — aggressive | Tree Spires, Purple Vents, East Arctic | Deadly — charges with a screech, grabs and holds your vehicle | Keep distance and stay in a vehicle — it restrains rather than one-shots, so you can break free and flee. The Prawn can fight back; the Seatruck should run. |
| Ice Worm | Leviathan — aggressive (land) | Arctic Spires (on the surface — it burrows, doesn't swim) | Deadly & unkillable — lunges, horn-thrusts, can swallow you whole | Deploy a Thumper — its sound lets you cross safely while the battery lasts. It hunts by vibration, so move deliberately and stay near cover. |
| Squidshark | Large predator (not leviathan-class) | Deep Lilypads Cave, Deep Twisty Bridges, Lilypad Islands | Aggressive — bite plus electrified tentacles that briefly cut vehicle power | Stay above ~40 HP so a bite can't finish you. Don't linger in Lilypad caves; the Prawn handles the electric hits better than swimming. |
| Cryptosuchus | Large predator | Purple Vents & Thermal Spires (incl. caves) | Aggressive but mild — "more roar than bite" | Give it room to avoid aggro. If it engages, one counterattack usually makes it retreat. |
| Brinewing | Carnivore (not leviathan; often mis-called "Brinewolf") | Sector Zero waters | Mostly harmless — freezes you in place (no damage) but leaves you sinking and helpless | Don't get frozen near Symbiotes or on low oxygen. It has no damaging bite — just keep moving. |
| Glow Whale | Leviathan — passive | East Arctic & Lilypad Islands; breaches the surface | Harmless | Safe to approach — you can even ride its back. No action needed. |
| Ventgarden | Leviathan — passive | Tree Spires, anchored over hydrothermal vents | Harmless & invulnerable — a 110 m living greenhouse | Safe. You can swim inside it through the underside, ride its updraft, even build base parts in it. |
| Titan Holefish | Large passive herbivore (NOT a leviathan, despite "Titan") | East / Sparse / West Arctic | Harmless itself — "slow, stupid and delicious" | The catch is the Symbiotes swarming it — deal with those to get near. The fish won't hurt you. |
| Frozen Leviathan | Leviathan — deceased (story set-piece) | Encased in ice at the Phi Excavation Site | No threat — it's dead and frozen | Purely environmental/story. Nothing to fight. |
Know the monsters — here's the rest of the toolkit.