Players pushing into the late-game story of Subnautica 2 have been running into a familiar problem: rare materials run dry fast, and the deeper zones needed to restock them are genuinely hostile territory. The metal farm changes that equation entirely, letting you replicate scarce resources directly at your base once you've done the legwork to unlock it.
Scanning the alien metal farm
Finding the blueprint in the far east
The metal farm blueprint isn't handed to you. Getting it requires reaching the far eastern edge of the current early access map, which means progressing deep enough into the story to discover the Alien Power Plant. After fixing the turbine there, the metal farm structure sits just beyond it, recognizable by its toxic yellow-green pool and visibly destroyed prongs.
To unlock the blueprint, you need to scan 3 separate sections of that ruined structure: both prongs and the main body. The area has real teeth, though. A leviathan-class creature patrols nearby, and some of the local fauna can drain your tadpole's power or damage the vehicle directly. Bring a spare power cell and keep your repair tool equipped before you make the trip.
Spend as little time outside your tadpole as possible near the metal farm site. The leviathan in this area can end a run fast if you're caught on foot.
What you need to build it
Once the blueprint is scanned, construction requires two specific components:
- 1x Mangalloy ingot (crafted from 1x titanium ingot, 1x atacamite, and 1x troilite)
- 1x Axum Bacterial Culture
The Mangalloy ingot is the trickier part. Troilite in particular is one of the scarcer materials in the game, which is a bit of a catch-22 given that the metal farm is exactly what you'd want to use for farming troilite later. Prioritize finding a natural deposit before your first build.
Placement is flexible. You can drop the metal farm anywhere using the Habitat Builder, including directly on top of your existing base. The farm's output is determined by what you put inside its inventory, not by where it's physically located, so ignore any in-game description suggesting otherwise.
Metal farm mounted on base
Getting the power connection right
Power is where most players hit a wall. The metal farm needs a power transmitter nearby to function, and the transmitter itself needs a visible power line connecting back to your base or power supply. When placing the transmitter, watch for that line to appear before confirming placement.
The key here is proximity. Moving the transmitter close enough to your base surface until it physically attaches tends to solve most connection issues. If the line isn't showing, shift the transmitter incrementally until it clicks into place.
With power sorted, the loop is straightforward:
- Place the metal or ore you want to replicate inside the farm's inventory
- A countdown timer appears above the structure
- Wait for the node to generate
- Use the Sonic Resonator to break the node and collect the output
This makes the farm especially valuable for scarce materials like troilite and titanium, both of which get consumed heavily during the Power Plant turbine repair sequence. If you haven't hit that section yet, you'll understand the demand spike when you do.
For players still building up their resource stockpile before reaching the metal farm, the Subnautica 2 guides collection covers farming routes for specific materials including dedicated breakdowns on where to find lead and how to process germanium ingots and the best silver farming spots near your Lifepod. Both are worth reading before you commit to a base location, since proximity to natural deposits matters in the early hours before the farm comes online.
