[FABRIC] Backrooms 1.0.0 is a release file of the Minecraft mod Old Backrooms for Fabric, made for Minecraft 1.7.10. It was published on August 15, 2021 and is 53 MB in size. For the full description, screenshots and every other version, visit the Old Backrooms mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.