swem-1.21.1-1.6.9.jar is a release file of the Minecraft mod Star Worm Equestrian (Upgrading Horses) for NeoForge, made for Minecraft 1.21.1. It was published on May 9, 2026 and is 11.3 MB in size. For the full description, screenshots and every other version, visit the Star Worm Equestrian (Upgrading Horses) mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
