Factorio Codexery

Nuclear Reactor

Fueling the sprawling industrial dream through atomic fission.

The Nuclear Reactor is a machine in The Planet Crafter that generates power. Deeper into the game, nuclear reactors are used to generate power, and these generators can be placed anywhere on the planet and still power machines regardless of where they are placed.

Pollution Level
None (directly); pollution is generated by other entities like miners or boilers

Lore & Background

Before the discovery of uranium ore, settlers relied on coal and steam engines that consumed vast amounts of resources for modest gains. The reactor changed everything, offering energy density that fossil fuels could never match. It represents a leap in understanding the planet's resources, allowing the factory to scale exponentially without being choked by logistics.

In Their Own Story

The hum was deeper than any steam engine, vibrating through the metal floorplates. Engineer Kael watched the blue glow pulse within the steel casing, a contained star in the alien desert. Pipes hissed nearby as water turned to steam, carrying the atom's fire away from the core. One spark of miscalculation could stall the line, but here, power flowed like a river.

Reader's Guide

The Nuclear Reactor is a power generator that becomes available deeper into the game. It is one of the methods used to generate power, alongside wind turbines and solar panels. Unlike early-game wind turbines, nuclear reactors are a more advanced power source. A key feature of all generators in The Planet Crafter, including nuclear reactors, is that they can be placed anywhere on the planet and will still power machines regardless of where they are placed. This means you do not need to build your reactor near your machines; you can place it in a convenient location and it will contribute to your global power grid.

Did You Know?

Frequently Asked Questions

What technology is required to unlock the Nuclear Reactor?

Players must research the Nuclear Power technology in the Advanced Chemistry and Engineering tree before they can construct this machine. This milestone signifies a major shift from burning coal or oil to harnessing atomic energy.

How does the Nuclear Reactor generate power for my factory?

The reactor consumes Uranium Fuel Cells to produce intense thermal heat rather than electricity directly. This heat must then be transferred to Heat Exchangers and Steam Engines to convert it into usable electrical output.

Why is the Nuclear Reactor considered essential for late-game factories?

It provides a massive density of power generation that far exceeds traditional boilers, making it vital for sustaining sprawling industrial complexes. Without this capacity, powering rocket launches and advanced production lines would be inefficient or impossible.

What are the environmental risks associated with using Nuclear Reactors?

While highly efficient, these reactors generate significant pollution per unit of output if not properly managed with cooling systems. Excessive heat buildup can also lead to catastrophic meltdowns that destroy surrounding infrastructure and release toxic clouds.

How does the Nuclear Reactor fit into the overall evolution of a Factorio factory?

This machine marks the transition from simple combustion engines to complex atomic energy grids, representing the peak of industrial engineering. It serves as the beating heart of end-game power networks, enabling the scale required for interplanetary travel.

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