MKUltra-0.98.jar is a release file of the Minecraft mod MK: Ultra, made for Minecraft 1.12.2. It was published on September 22, 2019 and is 1.2 MB in size. For the full description, screenshots and every other version, visit the MK: Ultra mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
