darkbosses-fabric-1.21.1-1.0.5.jar is a release file of the Minecraft mod DarkBosses - RPG Bosses Advancements for Fabric, made for Minecraft 1.21.1. It was published on August 23, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the DarkBosses - RPG Bosses Advancements mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.