is an open-source, cross-platform application for original Xbox emulation. Unlike the early days of Xbox emulation, which were plagued by instability and high system requirements, xemu has matured into a robust piece of software. It is built on a foundation of accuracy, aiming to replicate the hardware behavior of the original Xbox (specifically the Revision 1.0 hardware) rather than just hacking games to run.

Unlike emulating a SNES or PS1, the original Xbox is essentially a Pentium III PC with an NVIDIA GeForce 3 GPU. Emulating it requires brute force.