invalid_modjar-1.3.0-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 22, 2025 and is 6.2 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.
