PeakCraft

PeakCraft

Play PEAK as a Minecraft player. You move with Minecraft's physics on PEAK's mountain, carry Minecraft's inventory and HUD, and place and break blocks that PEAK draws in its own world.

PeakCraft is a port of SkyCraft by chasmlol (Minecraft inside Skyrim) to PEAK. Neither game is rewritten: Minecraft runs its own game logic hidden in the background, PEAK runs its airport, island, fog and campfires, and two small mods talk through shared memory.

Experimental, solo only. A fan project. It isn't affiliated with Mojang, Microsoft, Landfall, Aggro Crab, Bethesda or ZeniMax, and you need to own both games.

Your Minecraft skin, armour and held items in PEAK	Blocks lit and shadowed by PEAK

What works

• Movement: walk, sprint, jump, sneak, fall and fly (Creative) with real Minecraft physics on

  PEAK's terrain and buildings. Sneaking stops you at the edge of PEAK's ledges.

• Camera: first person and both F5 third-person views. PEAK's mirrors show your Minecraft

  body, animated, in first person too.

• HUD: Minecraft's hotbar, hearts, chat, inventory and every other Minecraft screen, over

  PEAK's picture.

• Blocks: place and break blocks anywhere. They are hidden by PEAK's rocks in front of them and

  lit by PEAK's sun. Arrows, dropped items, torches, chests and particles show too.

• PEAK's run: the kiosk, the flight, the crash on the beach, luggage, campfires, and the rising

  fog all work, through one interact key (G). The summit ending is not reachable yet: it needs a PEAK flare, and PEAK's items cannot be used while Minecraft has the body.

• Survival: the world starts in Creative, where nothing on the mountain hurts you.

  /gamemode survival makes PEAK's hazards cost Minecraft hearts, and a Minecraft death kills your scout.

• Safe fallback: if Minecraft closes or hangs, PEAK gives you its own controls, camera and HUD

  back within a few seconds, and links again when Minecraft returns.

Installing and playing

Requirements, install steps, controls and the full list of known limitations are in peak/README.md, which is also the README of the mod package. In short:

1. Build the package (below) and install it into a BepInEx profile for PEAK.
2. Put skycraft-.jar in the mods folder of your own Minecraft 26.3 Fabric instance and

   add --enable-native-access=ALL-UNNAMED to its JVM arguments.

3. Start Minecraft and leave it on the title screen, then start PEAK and begin a solo game.

There is no published release yet; build from source.

Building from source

You need the .NET SDK 10 and JDK 25, on Windows.

cd fabric && gradlew build            # writes fabric/build/libs/skycraft-.jar
dotnet build peak -c Release          # writes peak/artifacts/thunderstore/release/*.zip

Copy peak/Config.Build.user.props.template to peak/Config.Build.user.props if PEAK or your BepInEx profile are not in the default places.

How it fits together

Documentation

Credits

• SkyCraft by chasmlol

  is the original project. The Minecraft mod, the protocol, the two-game design and most of the ideas in the porting guide are SkyCraft's. This repository keeps SkyCraft's full history.

• PeakCraft adds the PEAK host plugin and four changes in the Minecraft mod: the mirror world

  starts in Creative, digging is off by default, sneaking stops at the edges of the host's ground, and the player's model is sent in first person too so mirrors can show it.

• The plugin is built on BepInEx,

  HarmonyX and the PEAK modding template. Third-party notices for SkyCraft's own dependencies are in THIRD-PARTY-NOTICES.md.

License

MIT, like SkyCraft. Copyright for SkyCraft remains with chasmlol.