MagnumOpus-1.12.2-0.0.40.jar is a beta file of the Minecraft mod MagnumOpus for Forge, made for Minecraft 1.12.2. It was published on September 18, 2019 and is 4 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the MagnumOpus mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
