Subnautica 2 Guide: What to Build First in Your Base
Establish Your Underwater Headquarters and Unlock Advanced Crafting With This Core Build Order
Quick Answer: Establish your underwater headquarters by prioritizing a power grid with Solar Panels, followed immediately by a fully functional Fabricator, Storage Lockers, and a Processor. These four core modules remove early crafting restrictions and pave the way for vehicle production.
Throwing down a few tubes on the seafloor is only the beginning. In Subnautica 2, your base is the beating heart of your progression. It serves as your industrial crafting hub, your safe haven, and your launchpad for deep-sea exploration. If you just slap down random rooms without a plan, you will hit a massive progression wall.
To get your operation running smoothly, you need to focus on a specific build order. Here is exactly what you should construct first to maximize your efficiency.
The Core Module Build Order
Before you start decorating or placing windows, focus on pure utility. Following this priority list ensures you never run into power blackouts or blocked crafting recipes:
| Build Priority | Base Facility | Why You Need It Immediately |
| 1 | Power Source | Absolutely nothing works without electricity. |
| 2 | Fabricator | Removes the severe crafting limitations of the Lifepod version. |
| 3 | Storage Lockers | Keeps your rapidly growing inventory organized. |
| 4 | Processor | Refines raw ores into Ingots for advanced tech. |
| 5 | Scanner Station | Pinpoints exact resource locations in the surrounding biome. |
| 6 | Vehicle Facilities | Kicks off the production of your first submarine. |
Step 1: Establish a Power Grid
A dark base is a useless base. Your very first move is slapping a few Solar Panels onto the roof of your new habitat. They are cheap to build and provide excellent daytime energy in the shallow biomes. While you are on the roof, place a Habitat Beacon so you can easily spot your base from a distance.
Solar Panels do lose effectiveness at night and in deeper waters. Eventually, you will need to upgrade to Bioreactors or Hydroelectric Turbines, but the sun is more than enough to get you off the ground.
Step 2: The Fully Functional Fabricator
The Fabricator inside your crashed Lifepod is basically running in safe mode. It locks you out of advanced blueprints. Building a Fabricator inside your powered base lifts these restrictions entirely. You will finally be able to craft crucial electronics like Wiring Kits and System Chips, alongside proper medical supplies like the First Aid Kit.
Since you will be swimming back and forth between resource nodes and your new base constantly, you need to speed up your travel time. Make sure you know exactly how to find and craft the Wakemaker in Subnautica 2 so you can zoom through the water and gather materials in record time.
Step 3: Getting Organized
Do not leave your precious resources scattered in tiny portable boxes outside. Build Wall Lockers inside your base immediately. They only cost two pieces of Titanium each and drastically increase your hoarding capacity.
If you want the larger Floor Lockers, you need to scan them first. Head 220 meters Southeast of your Lifepod and dive 42 meters down to find a Colonist Bunker holding the blueprint. The best part about base storage? Your Fabricator automatically pulls materials directly from nearby lockers. You do not even need the items in your personal inventory to craft!
Step 4: Firing Up the Processor
Raw ore only gets you so far. Once your storage is sorted, build a Processor. This heavy machinery refines your raw materials into Ingots. You need a steady supply of Ingots to build the Sonic Resonator, an essential tool for clearing blocked paths and pushing the main story forward. Ingots are also a primary ingredient for getting your vehicle production online.
Mid-Game Base Expansions
With your core foundation secured, you can start looking toward the next phase of your base. Keep an eye out for these blueprints to take your facility to the next level:
- Scanner Station: Swim 375 meters North of the Lifepod to an Old Habitat and scan this module. It completely trivializes the resource grind by tracking nearby ore directly on your HUD.
- Vehicle Fabricator & Tadpole Dock: Time to get out of the water and into a proper submarine. These modules are your ticket to safer, deeper exploration.
- Biobed: If your base is far from the starting area, building a Biobed lets you set a custom respawn point. You can scan the blueprint at the same Colonist Bunker where you found the Floor Locker.
- Biolab & Battery Terminal: A personal Biolab lets you swap DNA upgrades at home instead of visiting the Welcome Center. The Battery Terminal is a nice luxury for recharging dead batteries, though crafting fresh ones is usually cheap enough early on.
