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Minecraft Crossover Bridge for Elden Ring

A source-only Mac project that composites Minecraft Java 1.21.1 into Elden Ring running under CrossOver. There is no release build. You clone the repo and compile it against games you own.

Minecraft: Java Edition × Elden Ring

  • Mac
  • CrossOver

Last checked 8 Oct 2026 · 23 GitHub stars

What it does

  • Minecraft runs natively on macOS. Elden Ring runs in CrossOver. A Fabric mod and a Windows DLL share memory through files in /tmp.
  • Minecraft owns the player and sends its camera every frame. Elden Ring draws its world from that camera, and Minecraft's pixels are composited with a depth test.
  • Terrain rays become invisible blocks Steve can walk on. Monsters become invisible Minecraft entities. Hits go back through the game's own damage functions.
  • F8 hands the keyboard and mouse back to Elden Ring for menus.

What coverage reported

These lines come from the linked articles. This site has not run the project.

  • The README credits the original idea to @tobynjacobs and describes the author's implementation as vibecoded. It does not name the coding tool.

Requirements

Mac
Apple Silicon. The README says it was tested on an M2 Max with macOS 14.3.
CrossOver
CrossOver 26, tested with 26.3. Elden Ring in a bottle named Elden Ring, graphics set to D3DMetal. CrossOver 26's D3DMetal needs macOS 15.4 or later. macOS 14 has a separate shim doc in the repo.
Elden Ring version
App Ver. 1.17.1 (eldenring.exe 2.7.1.0). Other versions turn mismatched features off.
Minecraft
Java Edition. The bridge uses Fabric's development launcher for 1.21.1 and downloads Minecraft and Fabric on first start.
Build tools
Homebrew packages mingw-w64, Temurin 21, and Temurin 25, plus Apple's Command Line Tools.

Platforms: Mac, CrossOver

Install steps

  1. There is no downloadable release. Clone https://github.com/justbustin/minecraft-crossover-bridge and build it yourself. This site does not ship the DLLs or the Fabric mod.
  2. Install the Homebrew packages and Command Line Tools listed in the README.
  3. From the repo root, run elden-ring/scripts/install_er_bridge.sh to build and install the bridge into the CrossOver bottle.
  4. Start Elden Ring with the offline launcher in the repo (Launch Elden Ring + Minecraft bridge.command, or elden-ring/scripts/launch_er.sh). Load a save and stand in the world.
  5. Run elden-ring/scripts/run_minecraft.sh. Minecraft opens its ER Bridge world and takes the keyboard once the character is in the world.
  6. Read elden-ring/README.md in the repo before you go further. Back up saves.

Install guide for Minecraft Crossover Bridge for Elden Ring

Before you touch a save

  • Elden Ring is offline only. The launcher starts it without Easy Anti-Cheat. Never take a modded game online.
  • A normal Steam launch stays unmodded. The bridge loads only through the project's launcher.
  • One game version is supported. A patch can silently disable features whose addresses no longer match.
  • You need a paid CrossOver license and an Apple Silicon Mac. This is not a one-click Windows download.

Sources

Checked 2026-10-08. We link out. We do not rehost files.

Official source