Better Fusion Reactor for Mekanism

Once installed, the addon changes how the reactor is run. The reactor is meant to keep a Current Reactivity close to a Target Reactivity that changes over time, a value between 0 and 100. The closer the two stay, the higher the Reaction Efficiency and the more energy and steam per tick the reactor produces. Efficiency below 80% lets the Error Level grow, and an Error Level of 100% shuts the reactor down. A config option that is disabled by default can make the reactor explode instead.

Higher temperatures make a stable reaction harder to hold. The Heat Multiplier depends on the plasma temperature and on the cooling type, and water cooling lowers it. A lower Heat Multiplier means a longer gap between resets of the Target Reactivity and slower changes in the Error Level. Players can tune the injection rate to find a suitable value, and redstone or computer logic can automate the control instead of manual adjustment.

The addon also ships a new reactor controller user interface and reactor logic ported to the new design, and it can rebuild existing reactors with blocks from the Mekanism mod. It requires Mekanism Generators, which provides the reactor itself, and it is published for Forge and NeoForge across six game versions. Installation covers the server and each player's game.