rottenleather-1.5.0-neoforge-1.21.1.jar is a release file of the Minecraft mod Rottenleather for NeoForge, made for Minecraft 1.19.3, 1.20.2, 1.21.2-Snapshot, 1.21, 1.19.4-Snapshot, 1.20.5, 1.21.5, 1.20.2-Snapshot, 1.20.5-Snapshot, 1.19.4, 1.21.1-Snapshot, 1.21.4 and more. It was published on May 16, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the Rottenleather mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.