NC-ReactorBuilder-1.12.2-1.0.2.jar is a release file of the Minecraft mod NuclearCraft Reactor Builder, made for Minecraft 1.12.2. It was published on April 11, 2021 and is 0.5 MB in size. For the full description, screenshots and every other version, visit the NuclearCraft Reactor Builder mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
