Habitat Builder Fragment Locations in Subnautica 2

Quick answer

To unlock the Habitat Builder, craft a Scanner and scan two Habitat Builder devices. Current launch-build route notes place two early scans at the Welcome Center colony ruin southeast of the Lifepod: one in an open crate near the entrance sign, and one in the cave below the building after clearing the blocked floor opening.

How to unlock it

Make the Scanner first, then run the Welcome Center route. Scan both builders before returning to craft your own tool.

• Scanner crafting route: 2 titanium, 2 quartz, and 1 basic battery.
• First scan: open crate to the right of the Welcome Center entrance sign.
• Second scan: cave below the building, reached after removing the metal blocking the floor hole.
• Habitat Builder craft: 2 titanium, 1 glass, 1 basic battery, and 1 copper wire.

Welcome Center scan route

This is the practical early route when storage and crafting trips start slowing you down.

• Craft the Scanner before leaving the Lifepod route.
• Swim southeast toward the Welcome Center colony ruin.
• Scan the first Habitat Builder in the open crate near the entrance sign.
• Enter the structure and check the floor opening that leads into the cave below.
• Clear the blockage, drop into the shallow cave, and scan the second Habitat Builder.

Materials to prepare

You can save time by gathering the craft materials before returning to base.

• Titanium: keep at least two pieces for the builder itself and more for the first base module.
• Glass: prepare quartz ahead of time so the Habitat Builder craft does not stall.
• Basic battery: keep battery materials reserved instead of spending everything on other tools.
• Copper wire: collect copper during starter resource loops.

What to build first

After unlocking the builder, prioritize a compact base that solves storage, oxygen resets, and crafting access before decorative modules.

• A small room or compartment.
• Reliable power.
• Storage near the entrance.
• Crafting and upgrade access if unlocked.

First base after the unlock

Build small and functional. The first base is good when it reduces repeated Lifepod trips, not when it uses every material you own.

• Start near the Lifepod or another safe early landmark.
• Add power before extra rooms.
• Place storage and a Fabricator where you can reach them immediately after entering.
• Leave clear space if you plan to add Moonpool or Tadpole infrastructure later.

References

• PC Gamer Habitat Builder launch-build route

Habitat Builder FAQ