MekanismMatter-1.21.0-Custom_Rcp-Beta-1.16.5.jar is a beta file of the Minecraft mod Mekanism Matter for Forge, made for Minecraft 1.16.5. It was published on February 7, 2022 and is 2.6 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 Mekanism Matter mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
