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Killcraft

Minecraft+ULTRAKILL

Build bridges and fight ULTRAKILL enemies with Minecraft gear.

Source checked 2026-10-11 · By goonsn

Windows

Steam ULTRAKILL, BepInEx 5 x64 and an owned Minecraft Java account.

Open author downloadsCheck requirements
Opens the creator’s release listing. Check its versions and setup instructions.
Original illustration of Killcraft mechanics; not gameplayIllustration · not gameplay
Original illustration by Merging Games, not a gameplay screenshot.

Minecraft building and gear inside ULTRAKILL levels

Killcraft runs a hidden Minecraft session while ULTRAKILL supplies levels, enemies and checkpoints. Minecraft supplies movement, health, inventory, blocks and combat equipment. The v1.0.1 release, published October 7, 2026 in China, fixes damage from hazardous floors. The current README also describes Nether portals and a temporary potion for ULTRAKILL movement.

What you need

Windows, your own Steam ULTRAKILL, BepInEx 5 x64 and a Microsoft account that owns Minecraft Java Edition. The release includes SkyCraft’s portable Prism setup. It downloads Minecraft and Java on first launch; Skyrim is not required. The current source uses Minecraft 26.3, but the exact bundled release configuration must be checked in Prism.

How to get started

  1. Read the author’s release and back up your saves and mod setup. Install BepInEx 5 x64 in ULTRAKILL first.
  2. Extract Killcraft-1.0.1.zip into ULTRAKILL/BepInEx/plugins/. Keep the bundled SkyCraft-Minecraft.zip compressed.
  3. Start ULTRAKILL. Use Prism’s first-run sign-in and game downloads, then enter a level.
  4. F9 switches Minecraft mode on or off. Check FreshWorldEachLaunch before building anything you want to keep.
FreshWorldEachLaunch defaults to true: builds and inventory reset each session unless you change that setting. Native ULTRAKILL weapons and style mechanics are replaced in Minecraft mode. Mob rendering and pathfinding are incomplete. Minecraft receives nearby level collision only, and distant ender pearls return to the player. Current README features may exceed the older release.

Was this made with AI?

AI involvement is not established by the checked author README or release notes.

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.

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