inside_the_backrooms-1.2.1-forge-1.20.1.jar is a release file of the Minecraft mod Inside the backrooms blocks for Forge, made for Minecraft 1.20.1. It was published on July 16, 2026 and is 25.6 MB in size. For the full description, screenshots and every other version, visit the Inside the backrooms blocks mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
