pmmo_irons_spellbooks_compat-1.21.1-1.0.4 is a release file of the Minecraft mod Project MMO: Iron's Spellbooks Compat for NeoForge, made for Minecraft 1.21.1. It was published on October 10, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the Project MMO: Iron's Spellbooks Compat mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.