oremageddon-1.12.2-1.17 is a release file of the Minecraft mod Oremageddon for Forge, made for Minecraft 1.12.2. It was published on July 24, 2020 and is 0.7 MB in size. For the full description, screenshots and every other version, visit the Oremageddon mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
