
A living record of every creature Unknown Worlds has shown publicly. Source, aggression, size, biome. Updated the hour new footage lands.
3
Tracked Creatures
1
Fully Revealed
2
Teased / Hinted
UE5
Reveal Pipeline
Ecosystem · 06 Facts
Everything Unknown Worlds has said publicly about how Subnautica 2 creatures get built.
Design pipeline
UE5 + bespoke AI behavior trees per creature
Animation
Full skeletal rigging, not pre-baked vertex animation
VFX
Custom particle and volumetric passes, shown for Collector
Planet
New ocean world in the Ariadne Arm, not 4546B
Connection to S1 fauna
None confirmed. New cast and new ecosystem
Team
Art and technical animation leads walk through the full Collector reveal
Featured · Leviathan
First Subnautica 2 creature walked from concept sketch to finished AI behavior tree.
Design pipeline
Creating the Collector Leviathan
01 · 00:40
Modelling & Sculpting the Leviathan
02 · 01:57
Rigging the Collector
03 · 03:27
Technical Animation
04 · 04:54
Design Docs & Animating the Leviathan
05 · 06:21
Visual Effects
06 · 08:23
AI Behavior Tree
07 · 09:04
Bestiary · Ledger
Speculation is marked explicitly. Unknown fields stay blank rather than invented.
| Name | Status | Class | Size | Aggression | Biome | Source |
|---|---|---|---|---|---|---|
| Collector Leviathan | Revealed | Leviathan | Large (Leviathan class) | Reactive | Not confirmed | Dev Vlog, Sep 16 2025 |
| New Small Fauna | Teased | Small Creatures | Small (fish-class) | Passive | Multiple biomes teased | Take a Deep Breath, Multiplayer vlog |
| Mid-size Predators | Teased | Aggressive Fauna | Medium | Aggressive | Reef and mid-zone teased | Diving Together, Feb 10 2026 |
Profiles · Deep Cuts
Card-level detail. More body copy lands as dev logs drop.

Leviathan
Size
Large
Aggro
Reactive
Biome
Not
First Subnautica 2 leviathan revealed end to end. The Sep 2025 dev vlog walks from early concept sketches through sculpting, UE5 skeletal rigging, technical animation, VFX and a bespoke AI behavior tree that drives how the creature patrols, investigates, and hunts.
▸ Dev Vlog, Sep 16 2025
Dev log →
Small Creatures
Size
Small
Aggro
Passive
Biome
Multiple
Shoaling small fauna has been shown passing through gameplay footage in the Take a Deep Breath teaser and the Diving Together multiplayer vlog. Detailed reveals expected in upcoming dev logs before Early Access.
▸ Take a Deep Breath, Multiplayer vlog
Dev log →
Aggressive Fauna
Size
Medium
Aggro
Aggressive
Biome
Reef
Gameplay cuts in the Diving Together multiplayer vlog hint at several mid-size predators circling divers. Reveal episodes for each are likely between now and Early Access.
▸ Diving Together, Feb 10 2026
Dev log →
▸ While you wait
Full creature database from the first game, with stats, drops and biome data.