Minecraft movement and building inside ULTRAKILL
MINEKILL runs both games together. ULTRAKILL supplies the visible levels, camera, lighting and enemies. Minecraft supplies the player, movement, inventory, blocks, mobs, items and saves. The creator documents native ULTRAKILL rendering for Minecraft objects and shared collision between both games. The repository was created October 13, 2026 and updated October 15. No prebuilt release was listed when checked.
What you need
Your own Steam ULTRAKILL and Minecraft Java Edition. The source guide targets ULTRAKILL’s Unity 2022.3 Mono x86-64 build, BepInEx 5.4.23.2 win_x64, Minecraft 26.3, Fabric Loader 0.19.5 or newer and Java 25. Building also needs Python 3, a .NET SDK and Gradle.
Before you try it
- Read the creator’s requirements and build instructions.
- Build the ULTRAKILL plugin and Minecraft Fabric mod from source. No prebuilt files are listed.
- Use separate saves and follow the creator’s start order: load Minecraft first, then an ULTRAKILL level. Keep Minecraft running and do not minimize it.
Was this made with AI?
The author says Anthropic Claude did much of the coding under the author’s direction and playtesting. The source does not provide a measured contribution.
Original sources
We checked these pages on . This is a source-review date, not a claim that the game was updated or tested that day.
