Quick answer
Build your first Subnautica 2 base near routes you repeat: Copper, Silver, Scanner fragments, oxygen safety, food, and return landmarks. Get the Habitat Builder path moving, place a simple room and hatch, power it, then add storage before you chase a beautiful layout. After Hotfix 3, Interior Walls are cheaper, so early room dividers are less punishing than launch-week guides suggested.
Field notes for the first base
Build where you already swim
A first base should sit on a route you have proven, not on a postcard view you found once. If you cannot return to the spot while tired, it is too early for a main base.
Storage is progression
Lockers do not look exciting, but they stop every dive from ending in a sorting mess. Name them early, especially if someone else is sharing the base.
Leave one ugly side for expansion
Pretty symmetry can wait. Keep one side clear for power, vehicles, production rooms, or whatever Early Access patches make more important later.
Interior Walls got cheaper
Hotfix 3 reduced Interior Wall costs to one quarter of the previous price. That makes storage corners and co-op room dividers easier to justify early.
Visual notes and source media
Original route art
Abyss Guides uses original chibi deep-sea art for page visuals instead of copying wiki screenshots or fan uploads.
Source: Abyss Guides original artwork
Official Subnautica 2 gameplay trailer
Use the trailer for mood, vehicles, and biome context. Do not treat trailer scenes as exact farming coordinates.
Source: Official Subnautica YouTube embedFirst base order
Choose a useful route hub
Pick a spot you can find from more than one direction. Early beauty matters less than a reliable path home and nearby materials you actually use.
Unlock building before overplanning
Base building depends on the Habitat Builder path and scans. If the blueprint side is behind, spend the next dive scanning instead of hoarding random parts.
Power and hatch before decoration
A simple powered room with a hatch beats a huge dark shell. Build the working version first, then make it pretty after the loop pays off.
Label storage early
Separate common resources, rare materials, processed parts, organics, and personal gear. This matters even more in co-op.
Use Interior Walls where they save time
Because Hotfix 3 cut Interior Wall costs to one quarter, dividers are now useful for practical sorting instead of being a luxury decoration.
First base build board
Place
Route hub
Close to repeated resources, not just a nice view.
Start
Room + power
Hatch, power, storage, then expansion.
Grow
Staging base
Support deeper routes, vehicles, and co-op traffic.
First base priority table
| Base priority | Why it matters |
|---|---|
| Location | A base should shorten routes you repeat, not force a scenic commute. |
| Power | Crafting, storage use, and later systems feel better when power is solved first. |
| Storage | Good lockers save more time than a bigger room with messy piles. |
| Interior Walls | After Hotfix 3, their lower cost makes early storage lanes and co-op zones more reasonable. |
| Crafting access | Materials become progress faster when fabrication is close to the route. |
| Expansion room | Leave space for vehicle support, production, and co-op traffic. |
Do not build a museum first
Subnautica 2 gives you room to make a gorgeous base, and you should. Just not before it works. If the base does not help you breathe, store, craft, power, and return safely, it is decoration pretending to be progress.
FAQ
Where should I build my first Subnautica 2 base?
Build near repeatable early routes, safe visibility, common resources, and landmarks you can describe to yourself or teammates.
What should the first base include?
Start with a basic room, hatch, power, storage, and crafting access. Add expansion only after the base is helping your routes.
Is base building different in Subnautica 2?
Yes. Current coverage points to a more flexible building system, but the survival logic is the same: location, power, storage, and routes first.
Did Hotfix 3 change base building?
Yes, in a small but practical way: Interior Wall costs were reduced to one quarter of the previous price.