invalid_modjar-1.2.0-neoforge-1.21.1.jar is a release file of the Minecraft mod invalid_mod.jar for NeoForge, made for Minecraft 1.21.1. It was published on December 10, 2025 and is 6 MB in size. For the full description, screenshots and every other version, visit the invalid_mod.jar mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
