flatbiomes-1.0.0 (1.20-1.20.1).jar is a release file of the Minecraft mod Flat Biomes for Forge, NeoForge, made for Minecraft 1.20.1. It was published on November 29, 2025 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Flat Biomes mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.