The Xemu source code, compiled binaries, and documentation are 100% lawful. Piracy is illegal. Distributing copyrighted BIOS files without permission is a violation of copyright law.

However, unlike emulating a SNES or a Game Boy, getting Xemu to run is not plug-and-play. The single biggest hurdle for new users is understanding and acquiring the .

: This is the initial boot code for the Xbox hardware. The most recommended version is mcpx_1.0.bin .

Restart the emulator to see the iconic green "X" boot animation.

If Xemu says it can't find the BIOS, check:

These files are copyrighted by Microsoft. Downloading them from random websites exists in a legal gray area.