OC2R v0.1.1-beta.3.1 for Minecraft 1.21.1 (NeoForge) is a beta file of the Minecraft mod OpenComputers II: Modern for NeoForge, made for Minecraft 1.21.1. It was published on September 15, 2026 and is 26.8 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 OpenComputers II: Modern mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
