Cxbx-Reloaded (fork of Cxbx) is a work-in-progress Xbox emulator for Windows and WINE. Thanks to recent developments, it boots most of the game library and continues to make steady progress. It contains it's own implementation of the Xbox kernel, which means there's no need to acquire a dump from your Xbox. It also has audio and gamepad support but very few gaming enhancements.
CI-6c530fb / 14-03-2023
Windows: 7+, 64-bit only & 32-bit (x86) Visual C++ 2019 Redistributable
Linux: Currently not supported though try through WINE
Mac: Currently not supported
GPU: Direct3D 9.0c with Pixel Shader Model 2.x, and Vertex Shader Model 3.0
Npcap (used for network emulation) - Make sure to enable winpcap compatibility mode
xemu (fork of xqemu, which it was forked from QEMU) is an open-source, cross-platform, low-level system emulator for the original Xbox and Sega Chihiro. It's still in experimental state, which means it has partial audio support, graphics rending isn't consistant but it does have save state, gamepad, network support, etc. You'll also need an XBOX bios to run it.
0.7.90 / 18-05-2023
Windows: 7+ x64
Mac: No information reported
Since it emulates the actual hardware of the Xbox, you must have a copy of:
MCPX Boot ROM Image - mcpx_1.0.bin (provided from GameTechWiki)
Xbox Bios (provided from DiodeMatrix)
Pre-Built Xbox HDD image
Convert XBE-to-ISO / ISO-to-XBE via CXBOX-Tool