Actinium-alpha-0.0.6.jar is a release file of the Minecraft mod Actinium - Vintage Optimization for Forge, made for Minecraft 1.12.2. It was published on August 25, 2026 and is 6 MB in size. For the full description, screenshots and every other version, visit the Actinium - Vintage Optimization mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
