factor_io-1.20.1-0.3.0-beta.jar is a beta file of the Minecraft mod Factor'I/O for Forge, made for Minecraft 1.20.1, 1.20. It was published on August 22, 2026 and is 0.4 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 Factor'I/O mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
