FIND // PDA CASE FILE
Can't Find Deep Shrooms in Subnautica
Deep Shrooms are hazardous flora used for advanced materials, not a shallow starting resource. Find the right deep biome and take spores home before the dangerous route becomes a repeat trip.
LAST CHECK
ANSWER LOCK // QUICK RESPONSE
Search the Blood Kelp Zones and their caves first. Deep Shrooms also grow in the Lost River and Sea Treader's Tunnel Caves; knife one to collect spores for a planter.
SIGNAL CONFIRMEDLOCATION SCAN
BRING THIS
- Vehicle or deep-diving setup
- Survival Knife for spores
- Extra oxygen and a safe return route
DATA ACCESS LEVEL
Reveal only as much as you need
02 // DIRECTIONDirectionROUTE GUIDANCE
Look for the pale hazardous mushrooms in clusters on the seabed and cave walls, then harvest with your hand or knife depending on whether you need the plant or spores.
03 // EXACT ANSWERExact answerFULL SPOILER
Blood Kelp Zones and their caves are the dependable first search area; Lost River and Sea Treader's Tunnel Caves provide additional clusters.
COMMON REASONS YOU ARE STUCK
- Searching the Acid Mushroom starting loop
- Touching the hazardous plant without enough health
- Leaving without spores for a planter
- Confusing Deep Shroom with Crystalline Sulfur
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 // 01Deep Shroom OPEN SOURCE ↗WIKI · checked 2026-09-01
- SOURCE // 02Blood Kelp Zone OPEN SOURCE ↗WIKI · checked 2026-09-01
- SOURCE // 03Lost River OPEN SOURCE ↗WIKI · checked 2026-09-01