Upside Down 2.0 (1.21.8) is a release file of the Minecraft mod Upside-Down: The Revenge for NeoForge, made for Minecraft 1.21.8. It was published on May 17, 2026 and is 6.6 MB in size. For the full description, screenshots and every other version, visit the Upside-Down: The Revenge mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
