Exercise caution when handling radioactive materials. Exposure risks corrupting your PDA's recording of the circumstances of your death.


― PDA, Dialogue


The Nuclear Reactor processes Uraninite Crystal-based Reactor Rods into Energy for use by a Seabase. The Nuclear Reactor is constructed with the Habitat Builder, and can only be placed in the center of a Multipurpose Room.

The Nuclear Reactor generates energy at a rate of 250 power units per minute (4.166667 per second) regardless of how many Reactor Rods are installed. Each Nuclear Reactor can store a maximum of 2500 energy units.

The Nuclear Reactor can hold a maximum of four Reactor Rods, which will become depleted Reactor Rods once fully consumed.

Despite the Data Bank Entry saying do not replace the Reactor Rods without a Radiation Suit, one is not needed to replace them.


Reactor RodArrow-right (1)Nuclear ReactorArrow-right (1)Energy×20000Depleted Reactor Rod

Reactor Rod×4Arrow-right (1)Nuclear ReactorArrow-right (1)Energy×80000Depleted Reactor Rod×4


Plasteel IngotAdvanced Wiring KitLeadLeadLeadArrow-right (1)BuilderArrow-right (1)Nuclear Reactor

Data Bank Entry

Renewable energy sources will usually be sufficient for maintaining a small outpost. For everything else there's nuclear power.

  • Powered by up to four replaceable uranium reactor rods
  • Do not attempt to replace reactor rods without a full radiation suit
  • Do not attempt to overclock the reactor

Nuclear is ideal for energy-intensive operations such as:

  • Self-sufficient colonies supporting more than 20 people
  • Industrial outposts operating multiple docks and heavy machinery
  • Research stations housing live specimens