FIND // PDA CASE FILE
Can't Find Gel Sacks in Subnautica
Gel Sacks are easy to miss because they grow on cave walls and deep slopes instead of appearing as ordinary loose ore. Find one, then take spores home so Aerogel trips become repeatable.
LAST CHECK
ANSWER LOCK // QUICK RESPONSE
Check the underwater slopes of Mountain Island or the base of the giant Mushroom Tree in Northwestern Mushroom Forest. Pick up a sack, or use your knife to collect spores for a growbed.
SIGNAL CONFIRMEDLOCATION SCAN
BIOMEMountain Island slopes and Northwestern Mushroom Forest
DEPTHShallow Mountain Island water or deeper cave routes
REQUIRED EQUIPMENTSurvival Knife for spores, Seaglide, Extra oxygen for cave detours
BRING THIS
- Survival Knife for spores
- Seaglide
- Extra oxygen for cave detours
DATA ACCESS LEVEL
Reveal only as much as you need
02 // DIRECTIONDirectionROUTE GUIDANCE
03 // EXACT ANSWERExact answerFULL SPOILER
COMMON REASONS YOU ARE STUCK
- Searching the Safe Shallows only
- Expecting an ore outcrop
- Leaving without taking spores to grow a replacement
EVIDENCE LOG
Verification record
Facts on this page are separated from player speculation. Version-sensitive answers should be rechecked after an official update.
LAST CHECK2026-09-01
- SOURCE // 01Gel Sack OPEN SOURCE ↗WIKI · checked 2026-09-01
- SOURCE // 02Mountain Island OPEN SOURCE ↗WIKI · checked 2026-09-01
- SOURCE // 03Northwestern Mushroom Forest OPEN SOURCE ↗WIKI · checked 2026-09-01