theaddition-2.0.4-neoforge-1.21.1.jar is a release file of the Minecraft mod The Addition for NeoForge, made for Minecraft 1.21.1. It was published on May 11, 2026 and is 48.5 MB in size. For the full description, screenshots and every other version, visit the The Addition mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
