Madeira: Running ULTRAKILL on iPhone Without Jailbreaking

Runs x86-64 Windows PC games on non-jailbroken iPhones. It integrates Wine (ARM64EC), FEX-Emu, and DXMT into a single Mach process, with wineserver operating as a thread instead of a separate process.

Thumper and ULTRAKILL are playable. Marvel Cosmic Invasion reaches gameplay but still suffers from unstable controls. Since JIT compilation is required, installation must be done via sideloading using a debugger such as StikDebug.

This project is primarily research-oriented, with frequent title-specific bugs and rapid changes. Signing with a free Apple ID requires reinstallation every 7 days, but the container is preserved, so save data remains intact. The architecture has structural limitations that prevent distribution on the App Store.