backrooms-1.0.0.jar is a release file of the Minecraft mod Backrooms MOD Allio for Fabric, made for Minecraft 1.21.1. It was published on June 24, 2026 and is 73.4 MB in size. For the full description, screenshots and every other version, visit the Backrooms MOD Allio mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
