Subnautica Wiki
Subnautica Wiki
This article is about Gel Sack (Below Zero) in Below Zero. For the related article on the Subnautica Wiki, see Gel Sack (Below Zero).

The Gel Sack is an edible flora species that can also be used to craft Aerogel.


The Gel Sack is hemispheric in shape and has a blackish green surface covered with thick, twisted ridges. Randomly scattered across its surface are protruding, bioluminescent purple spots.

Uses in Crafting


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Data Bank Entry

Gel Sack
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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.

While the gel sack is edible, its low-density renders it an invaluable advanced construction material.

Assessment: Edible - Aerogel construction applications

Source: Scan Gel Sacks