Build near oxygen first
The best first base is boring: close to the Lifepod, easy to return to, and supplied by starter resources.
Base parts
Subnautica 2 Base Parts
A practical index for Habitat Builder unlocks, rooms, corridors, hatches, power systems, storage, and vehicle-support pieces without pretending every recipe is final.
Early Access rule: base-part names, recipes, and unlock order can change. This page groups base-building intent and links to source-backed routes before publishing exact costs.
Habitat Builder unlock
Public-guide leadTwo Habitat Builder scans at the Welcome Center route, then craft the tool before placing real base parts.
Rooms and corridors
Needs retestStarter corridors, rooms, hatches, and connection pieces. Exact unlock order should be checked after patches.
Power pieces
Needs retestSolar placement, later hydroelectric or thermal planning, and power storage. Use source-backed route rules before recipe tables.
Storage and utility
Roadmap watchLockers, storage cache, fabricators, processors, and support modules that affect co-op base flow.
Vehicle support
Roadmap watchTadpole Dock, Vehicle Fabricator, docking clearance, module support, and charging behavior.
Refund and relocation
Live guideMove a bad first base without turning every misplaced corridor into a long manual cleanup.
Base planning rules
Leave vehicle clearance
Do not fill every flat patch. Public base-location guidance calls out leaving room for later vehicle support.
Separate power from decoration
Roof-mounted solar rules, turbine routes, and later power systems matter more than cosmetic layout.
Label recipe certainty
If a recipe or unlock order is not current-build verified, keep it as Needs retest instead of printing a final cost.
Tracked base-part names
These are the small building and station terms currently worth tracking from public routes and external demand signals. They stay grouped here until source-backed recipes or standalone value justify deeper pages.
Biolab
Public-guide leadWelcome Center / DNA Modification route term. Use it to connect biomods, Bio Lab searches, and Bioscanner progression without copying competitor building recipes.
Basic Battery Terminal
Needs retestCompetitor databases expose it as a base utility term, while our map notes already include Power Cell Terminal-style scans at Camp One. Keep exact station naming and recipe cost pending.
Bioreactor
Public-guide leadThe northeast wreck route is already marked as a high-value scan stop that may include Bioreactor context. Verify current station text before printing costs.
Current Generator
Needs retestUseful for current-side base power searches and competitor overlap. Treat output, battery behavior, and recipe as current-build checks.
Dive Elevator
Needs sourceVisible in external building coverage, but not yet strong enough for our final base-part list. Watch official, public-guide, or current-build evidence before promotion.
Room / Corridor / Growbed
Needs retestSupport the broad base-building intent today; exact unlock order, size variants, and recipe rows need current-build station checks.
Related base routes
Base Building Guide
Habitat Builder scans, first base placement, materials, and power setup.
Crafting
Station families, recipe cautions, and progression tiers.
Recipes
Recipe-family index with confidence labels instead of unverified costs.
Interactive Map
Base spots, resource leads, route confidence, and source-labeled markers.
Base Parts FAQ
Is this a complete Subnautica 2 base parts list?
No. It is a curated base-parts hub for Early Access. Exact part lists and recipe costs should be promoted only after current-build verification.
Why not publish every room and module now?
Base modules are patch-sensitive and some external database-style pages appear to expose game-data-derived entries. We use those as demand signals, not as copyable source data.
What should I build first?
Unlock the Habitat Builder, place a small powered base near safe oxygen access, add storage, then plan power and vehicle clearance before expanding.