BOMD-1.2.1-1.17.jar is a beta file of the Minecraft mod Bosses of Mass Destruction for Fabric, made for Minecraft 1.17. It was published on June 12, 2021 and is 2 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Bosses of Mass Destruction mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
