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FIELD RECORD // UNLOCK
GAME // subnauticaENTITY // MoonpoolVERIFIED

UNLOCK // PDA CASE FILE

Can't Unlock the Moonpool in Subnautica

The Moonpool is a two-fragment base module. If it is missing from the Habitat Builder, the problem is usually an incomplete scan set rather than a story gate.

LAST CHECK

ANSWER LOCK // QUICK RESPONSE

Scan two Moonpool fragments in wrecks or the Mushroom Forest. After the blueprint completes, build the Moonpool below water with the Habitat Builder; a powered base is needed to charge docked vehicles.

SIGNAL CONFIRMED

BLUEPRINT DIAGNOSTIC // WHY IT ISN'T UNLOCKING

The Moonpool has its own two-fragment scan set. Finding the right biome is not enough if the scan was interrupted or the fragment belongs to another base module.

UNLOCK CHECKLIST

  • Find Moonpool fragments in wrecks or the Mushroom Forest
  • Scan two Moonpool fragments
  • Build the module below water with the Habitat Builder

BRING THIS

  • Scanner
  • Habitat Builder
  • Seaglide and oxygen reserve for wreck searches

DATA ACCESS LEVEL

Reveal only as much as you need

COMMON REASONS YOU ARE STUCK

  • Searching only the Aurora
  • Counting a duplicate scan as new progress
  • Confusing Moonpool fragments with Vehicle Upgrade Console data boxes
  • Trying to place the Moonpool above water

NEXT WAYPOINTS

Can't Unlock the Modification Station in Subnautica Can't Unlock the Seamoth in Subnautica What to Do After Getting the Seamoth in Subnautica

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