1.3.1+1.21.1 is a release file of the Minecraft mod Minestuck Compat for NeoForge, made for Minecraft 1.21.1. It was published on October 20, 2025 and is 0.8 MB in size. For the full description, screenshots and every other version, visit the Minestuck Compat mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
