The builder tool is designed to construct habitats capable of withstanding extreme environmental conditions.


― PDA, Dialogue


The Alterra handheld Habitat Builder is a tool crafted using the Fabricator.


The Habitat Builder allows the player to build a variety of stationary items. It is a crucial tool for the deployment of Seabases and the customization of the interiors of both Seabases and the Cyclops.

The Habitat Builder requires a Battery to operate, and objects cannot be constructed/deconstructed if the battery is depleted.

If a Bleeder latches onto the player's arm, the player can use the Habitat Builder to hit the Bleeder.

How to Use

  1. RMB to open the Builder menu
  2. Select the desired tab: Base Pieces, Exterior Modules, Interior Pieces, Interior Modules or Miscellaneous
  3. Select an item
  4. Point the Builder at wherever the item should be placed until an outline appears
  5. Press Q or E to rotate the object (if applicable)
  6. Press LMB to place the outline
  7. Continue building the item by holding the LMB
  8. Done.
  9. Placed items can also be deconstructed by pointing the Builder at them and holding Q, this only applies if the text "Hold Q to Deconstruct" appears on the screen. This also gives back all resources used in the building process.


Advanced Wiring KitBatteryArrow-right (1)FabricatorArrow-right (1)Builder

Uses in Crafting

Base pieces group Base Pieces

TitaniumTitaniumLeadLeadArrow-right (1)BuilderArrow-right (1)Foundation
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Corridor
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)L Corridor
TitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)T Corridor
TitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)X Corridor
GlassGlassArrow-right (1)BuilderArrow-right (1)I-Corridor Glass
GlassGlassArrow-right (1)BuilderArrow-right (1)L-Corridor Glass
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Vertical Connector
Titanium×6Arrow-right (1)BuilderArrow-right (1)Room
Titanium×5Copper OreCopper OreGoldTable Coral SampleArrow-right (1)BuilderArrow-right (1)Scanner Room
Titanium IngotTitanium IngotLubricantLeadLeadArrow-right (1)BuilderArrow-right (1)Moon Pool
QuartzQuartzQuartzStalker ToothStalker ToothTitaniumArrow-right (1)BuilderArrow-right (1)Observatory
QuartzTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Hatch
GlassArrow-right (1)BuilderArrow-right (1)Window
LithiumTitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Reinforcement

Base exterior modules group Exterior Modules

QuartzQuartzTitaniumTitaniumSilver OreArrow-right (1)BuilderArrow-right (1)Solar Panel
Titanium×5MagnetiteMagnetiteAerogelArrow-right (1)BuilderArrow-right (1)Thermal Plant
Silver OreTitaniumArrow-right (1)BuilderArrow-right (1)Power Transmitter
GlassTitaniumArrow-right (1)BuilderArrow-right (1)Floodlight
GlassTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Spotlight
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Exterior Growbed
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Base Pipe Connector

Base interior pieces group Interior Pieces

TitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Ladder
TitaniumTitaniumTitaniumCopper WireAerogelArrow-right (1)BuilderArrow-right (1)Water Filtration Machine
TitaniumTitaniumTitaniumLithiumArrow-right (1)BuilderArrow-right (1)Bulkhead
TitaniumTitaniumTitaniumComputer ChipCopper WireArrow-right (1)BuilderArrow-right (1)Seamoth Modification Station
TitaniumTitaniumTitaniumWiring KitLubricantArrow-right (1)BuilderArrow-right (1)Bioreactor
Plasteel IngotAdvanced Wiring KitBenzeneArrow-right (1)BuilderArrow-right (1)Nuclear Reactor
Glass×5TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Water Park

Base interior modules group Interior Modules

TitaniumGoldTable Coral SampleArrow-right (1)BuilderArrow-right (1)Fabricator
TitaniumCopper OreArrow-right (1)BuilderArrow-right (1)Communications Relay
Computer ChipFiber MeshSilver OreTitaniumArrow-right (1)BuilderArrow-right (1)Medical Kit Fabricator
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Wall Locker
QuartzTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Locker
Wiring KitCopper WireTitaniumArrow-right (1)BuilderArrow-right (1)Battery Charger
Advanced Wiring KitAluminum Oxide CrystalAluminum Oxide CrystalTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Power Cell Charger
GlassGlassTitaniumArrow-right (1)BuilderArrow-right (1)Aquarium
Computer ChipTitaniumDiamondLeadArrow-right (1)BuilderArrow-right (1)Modification Station
TitaniumArrow-right (1)BuilderArrow-right (1)Plant Pot
TitaniumArrow-right (1)BuilderArrow-right (1)Plant Pot 2
TitaniumArrow-right (1)BuilderArrow-right (1)Plant Pot 3
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Indoor Growbed
TitaniumArrow-right (1)BuilderArrow-right (1)Planter Shelf

Base miscellaneous group Miscellaneous

TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Bench
TitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Bed
TitaniumTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Bed 2
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Narrow Bed
TitaniumArrow-right (1)BuilderArrow-right (1)Desk
TitaniumArrow-right (1)BuilderArrow-right (1)Chair
TitaniumArrow-right (1)BuilderArrow-right (1)Chair 2
TitaniumArrow-right (1)BuilderArrow-right (1)Chair 3
Copper WireArrow-right (1)BuilderArrow-right (1)Sign
Copper WireArrow-right (1)BuilderArrow-right (1)Picture Frame
GlassTitaniumArrow-right (1)BuilderArrow-right (1)Bar Table
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Trash Cans
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Lab Trash Can
GlassTitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Vending Machine
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Coffee Vending Machine
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Lab Counter
TitaniumArrow-right (1)BuilderArrow-right (1)Wall Planter
TitaniumArrow-right (1)BuilderArrow-right (1)Single Wall Shelf
TitaniumTitaniumArrow-right (1)BuilderArrow-right (1)Wall Shelves
GlassTitaniumArrow-right (1)BuilderArrow-right (1)Markiplier Doll

Possible Post v1.0 Additions

Data Bank Entry


The Alterra handheld habitat builder has been an essential tool of xenoscientists, colonists and emergency relief crews across 11 different trans-govs for more than 50 years.

  • Habitat modules are hermetically sealed from the outside environment
  • Build on land, underwater, or in a vacuum
  • Habitats can be enhanced to become long-term homes, remote research stations, defensive outposts and more

Quick Start Guide:

  1. Select the basic compartment from the builder menu and place it somewhere opportune
  2. Add a hatch to access the compartment
  3. Build a solar panel to power the habitat's oxygen generator
  4. Construct useful interior modules like radios, rechargers and storage solutions

Primary habitat systems like oxygen generation and flood control, as well as modules like the fabricator draw power and will not function without it. Additional compartments reduce overall hull integrity, depending on the external pressure.

'Quick-Build Habitats: A home far, far away from home.'



  • The idea for the Habitat Builder may be taken from Natural Selection 2, where the Builder is used to create various machinery, much like Subnautica's.
    • And thus, the Habitat Builder's former name was the Builder.