McRepo Duo-Run

Play R.E.P.O. as a Minecraft player. You move with Minecraft's speeds, haul Minecraft loot to quota, and swing a Diamond Sword.

Neither game is rewritten: Minecraft runs its own game logic hidden in the background, R.E.P.O. runs its world, monsters, quota and saves, and R.E.P.O. draws everything.

Your real Minecraft body drives Steve: sprint, sneak or jump over there and the HUD shows SPRINTING, SNEAKING or AIRBORNE live while Steve matches it Minecraft speeds on R.E.P.O.'s floors: walk 4.3, sprint 5.6, sneak 1.31 Diamond Ore x3, Gold x2 and Emerald x2 as real quota valuables with your own Minecraft jar textures Diamond Sword prop in hand, Minecraft-fast swing Live link: the HUD reads OFFLINE_STEVE until Minecraft runs, then MINECRAFT_LIVE heartbeat: while you haul, and the Minecraft window hides itself 5 seconds after going live Solo and experimental: expect rough edges. You need to own both games, and you sign in to Minecraft once the first time. A fan project, not affiliated with Mojang, Microsoft or Semiwork.

First Play:

1. Press Play in Melty. You need R.E.P.O. and a Microsoft account that owns Minecraft: Java Edition.
2. A small Prism Launcher window asks for your sign-in once - sign in there, then go back to the game.
3. Prism downloads Minecraft 26.3, Fabric and Java itself (a few minutes, first time only). R.E.P.O. starts once Minecraft reports in.
4. From then on it is automatic: Minecraft starts hidden next to R.E.P.O. every Play.

Includes Prism Launcher (GPL-3.0), Fabric Loader, Fabric API and the mcrepo heartbeat mod (MIT); see the notices inside the download.