nature_horizons-1.20.1-1.0.4.jar is a release file of the Minecraft mod Nature Horizons: Overworld Biomes for Forge, NeoForge, made for Minecraft 1.20.1. It was published on October 6, 2026 and is 0.7 MB in size. For the full description, screenshots and every other version, visit the Nature Horizons: Overworld Biomes mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.