Quick answer
Current Subnautica2.gg data lists Moonpool as a scan-unlocked build with multiple unlock leads, including scan and Data Box paths. Dexerto lists the current build cost as Titanium x5 with the Habitat Builder. PC Gamer and AllThingsHow both tie Moonpool planning to the Tadpole Dock and Vehicle Fabricator chain, while Shacknews points the common "insufficient space to dock" problem back to clearance and placement. Build it in open water with room below, mark the bay with a Beacon, then add Tadpole Dock and Vehicle Fabricator around the vehicle route.
Field notes for Moonpool placement
Preview clearance from the vehicle angle
The build preview can look fine from the base wall and still feel awful from the Tadpole approach. Swim the entry line before committing.
Rebuild early if it feels cramped
Titanium x5 is cheaper than fighting a bad bay for every vehicle trip. If docking already feels awkward, move the Moonpool before decorating around it.
Name the vehicle base clearly
A Moonpool becomes a route hub. Mark it with a Beacon that says what it serves, such as "Tadpole bay" or "east vehicle base".
Moonpool setup route
Unlock before you collect everything
Subnautica2.gg currently lists Moonpool as a blueprint with scan and Data Box-style unlock leads. Do the scan route first, then let the PDA confirm the exact build state before hauling materials.
Keep the recipe simple
Dexerto currently lists Moonpool as a Habitat Builder base piece using Titanium x5. That is cheap enough to rebuild, which matters because placement mistakes are common.
Build it in open water
The Moonpool needs more room than a normal room. Leave space below for docking hardware, space around the sides for approach, and enough depth that the Tadpole does not scrape terrain.
Mark the bay before you decorate
A Beacon near the Moonpool keeps the vehicle base easy to find while you are still hauling Titanium, Glass, and power parts. It is cheaper than hunting your own base in bad light.
Plan Dock and Vehicle Fabricator together
PC Gamer and AllThingsHow both frame the vehicle path around Moonpool, Tadpole Dock, and Vehicle Fabricator. Put the Moonpool where both pieces can serve a clean vehicle approach, not just where a wall slot is empty.
Fix docking errors by moving the bay
If the game complains about insufficient space, stop fighting the preview. Shacknews points the fix toward better clearance, so move or rebuild the Moonpool before the whole vehicle setup becomes annoying.
Bay fit card
Below
clear
Docking hardware needs depth.
Recipe
5 Ti
Cheap enough to rebuild if placement is bad.
Route
Tadpole
Approach angle matters more than the preview.
Moonpool checklist
| Need | What to confirm |
|---|---|
| Blueprint unlock | Scan/Data Box leads are listed in current public data. |
| Titanium x5 | Dexerto currently lists this as the build cost. |
| Habitat Builder | Current base-piece page uses Habitat Builder construction. |
| Open water | Enough room below and around the bay. |
| Beacon | Mark the vehicle bay before the base layout gets busy. |
| Tadpole Dock | Place only after the Moonpool has real clearance. |
| Vehicle Fabricator | Plan it beside the same approach route. |
A cramped Moonpool makes every vehicle trip worse
If you have to twist the Tadpole through rocks or base parts, the Moonpool is in the wrong place. Rebuilding early costs less time than living with a bad bay for the next dozen trips.
FAQ
How do you unlock Moonpool in Subnautica 2?
Current Subnautica2.gg data lists Moonpool as a blueprint with scan and Data Box-style unlock leads. Check the PDA after scanning because Early Access unlock paths can move.
What is the Moonpool recipe?
Dexerto currently lists Moonpool as a Habitat Builder base piece using Titanium x5.
Where should I place Moonpool?
Use open water with space below and a clean vehicle approach. Avoid shallow bottoms, tight rock walls, and crowded base layouts.
Why does Moonpool say insufficient space to dock?
The usual cause is clearance. Move the Moonpool farther from terrain or rebuild the vehicle bay in deeper open water before adding Tadpole Dock.