Gel sack in Subnautica: Below Zero

Gel sackGel sack. Rolled for each new game at 95 to 355 m deep.

Data: Subnautica: Below Zero game files (build of 12 Aug 2025), read and drawn by PinDrop. (c) Unknown Worlds Entertainment. PinDrop is fan-made and not affiliated with Unknown Worlds Entertainment.

Map of Subnautica: Below Zero with the Gel sack drawn on it
heat = where it can spawn (model)Switch the gel sack layer on the map →
Depth
95 m to 355 m
Spawns per game
about 221
Placed pins
none
Gives
-

“These organic structures grow on cave walls. The purple sacks which arise from the surface contain a low-density gel laced with spores. These burst from time to time, floating towards the surface and attaching onto the next rock face they encounter.”

Assessment: Edible - Aerogel construction applications

Gel sack, in-game databank. The studio's text, quoted short.

Where Gel sack grows

The spawner tables hold 1 prefab type for it; 7,565 baked slots can hold one. Median depth 285 m, 10% deeper than 355 m, 10% shallower than 95 m.

Areas where Gel sack can spawn
AreaSlots that can hold itExpected per gameShare
Lily Pads6,64194
Twisty Bridges21994
Purple Vents70533

Spawn numbers are a model read from the game's spawner tables and 921,892 baked slots, not verified in a running game.

What it gives and what uses it

Harvest

The item table names no harvest for it.

Used in 3 recipes

  • Aerogel via Gel sack
  • Architect Tissues via Gel sack
  • Hydraulic Fluid via Gel sack

All recipes →

Nearby

Gel sack is most often found in Lily Pads, where these also spawn:

About the gel sack

The spawner tables roll the gel sack into 7,565 baked slots, about 221 per new game, mostly in Lily Pads, at 95 to 355 m deep for the middle 80%. 3 named recipes use it or its harvest.

Spawn numbers are a model (slot tables), not verified in a running game. Placed pins are read as placed. Depths are metres below sea level.