Switch between Steve and the original climbing, building and exploring inside White Knuckle.
Play inside White Knuckle and press F6 to switch between Steve, with Minecraft Java movement and inventory, and the original character, with White Knuckle hands, stamina, and climbing. Everything appears in the White Knuckle window; the actual Minecraft runs hidden with Fabric.
Mine and place blocks, use the creative inventory, Minecraft items and entities, and attack native creatures with Minecraft weapons. This version uses a 2× damage multiplier and connects luminous blocks, like torches and lava, to the host's lighting. E opens the inventory in Steve mode; O opens the Minecraft menu.
Single-player, Windows x64. Requires White Knuckle to be installed and an account that owns Minecraft Java. The guest runs Minecraft 26.3 / Fabric 0.19.5.
Experimental version: Minecraft uses a mirror world of the native environment, without automatic generation of the Overworld, Nether, or End. Reconstructed collisions may differ from the originals; Minecraft slabs and stairs still use full cubes for the White Knuckle character. Partial systems integration. One person per session.
Bridge code is under MIT, allowing remixes as long as license notices are preserved. Credit to chasmlol, creator of PeakCraft/SkyCraft, and this project's contributors. Prism Launcher (GPL-3.0), Qt (applicable LGPL/GPL licenses), BepInEx (LGPL), Fabric API (Apache-2.0), and other dependencies retain their own licenses; the corresponding notices and source are included with the release. Minecraft and White Knuckle belong to their respective creators; no game assets or credentials are distributed.