Unknown Living Structure — Subnautica 2 Creature Guide | Location & Tips
Unknown Living Structure is a passive creature in Subnautica 2 at 0–0m depth. A structure more than 2km tall and 3km wide — possibly the largest organism ever documented; possibly dying.
Last updated: 2026-05-15
Overview
Unknown Living Structure. An enormous passive organism measuring more than two kilometers tall and nearly three kilometers wide. Not a tree, despite its appearance — surface analysis inconclusive. One of the largest organisms ever documented on a planetary surface. Not purely photosynthetic — sunlight cannot sustain its full volume. Possibly dormant or dying: spectral analysis shows minimal internal activity, and organic offgassing suggests the onset of decomposition. May extract minerals and nutrients from a huge area through a theorized subsurface root network. Archived data fragment: 'The only thing you need to do is go towards that tree. If you're ever lost, look for a way to get closer.'
Stats
| Stat | Value |
|---|---|
| Behavior | Passive |
| Depth Range | 0–0m |