justcopperkit-1.0.0.jar is a release file of the Minecraft mod Just Copper Kit for Forge, made for Minecraft 1.12.2. It was published on October 23, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the Just Copper Kit mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
