bsb-0.1.0.jar is a release file of the Minecraft mod Boss Spawner Block for Forge, made for Minecraft 1.20.1. It was published on February 5, 2026 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Boss Spawner Block mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
