mystworlds-20.1.2.jar is a beta file of the Minecraft mod Myst Worlds Multiverse for NeoForge, Forge, made for Minecraft 1.20.1. It was published on July 22, 2025 and is 1.1 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Myst Worlds Multiverse mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
