Base part unlock
Subnautica 2 Hatch Blueprint
Base part unlock
Hatch matters because a base shell is not useful until you can enter it. Treat Hatch and Corridor as the immediate payoff for completing the Habitat Builder route.
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Habitat Builder
First base shell
Unlocks with builder
Blueprint facts
Use this row set when you need the station, unlock condition, output, and downstream planning without losing the route context.
Base part unlock
Hatch
Habitat Builder
Unlocks with builder
None
Base entrance, First usable habitat shell, Starter storage placement
Recipe or unlock row
Unlocked with Habitat Builder; check the Habitat Builder UI before placing multiple Hatches
Route order
Follow the unlock order before spending materials on lower-priority extras.
Complete the two builder scans
Hatch becomes relevant after the Habitat Builder unlock is complete.
Craft Habitat Builder
Return home and craft the tool before placing the base entrance.
Attach Hatch to the first shell
Use a simple Corridor or starter base piece, then add Hatch so the base can be entered.
What it unlocks
Player decisions
Habitat Builder scans at the Welcome Center.
Entrance for the starter base shell.
Corridor and nearby storage.
Map route links
These map entries point to the route stops that matter for this blueprint or recipe.
Habitat Builder scans
PC Gamer lists two Habitat Builder scans at the Welcome Center: one by the entrance crate and one in the cave below.
Welcome Center cave builder fragment
Turn left after the interior scans, enter the cave, refill oxygen, then scan the second Habitat Builder fragment.
Questions people ask
How do I unlock Hatch in Subnautica 2?
Complete the Habitat Builder scan route at the Welcome Center. Hatch unlocks with the first base-building setup.
What should I place with Hatch first?
Pair it with a simple Corridor or starter shell piece so you have an entrance to a usable base.
Related recipe and blueprint pages
Corridor blueprint
The first shell piece to pair with Hatch.
Habitat Builder recipe
The tool route that unlocks Hatch.
Base Parts
Hub for base modules, power, storage, and vehicle support.
Welcome Center guide
The full 150-degree facility route, Biolab step, southwest wreck follow-up, and return-home craft.
First Base Checklist
Interactive order for Habitat Builder materials, scan unlocks, and the first base return.
Welcome Center map marker
Open the map at the facility route before planning the southwest wreck leg.