Cxbx-Reloaded is an emulator for running Microsoft Xbox (and eventually, Chihiro) games on Microsoft Windows.
The project began life as a fork of Cxbx with added 64-bit support. Work is currently underway to backport some of the improvements from Dxbx.
Cxbx-Reloaded is still pretty unstable, don't expect it to run much at this point.
Cxbx-Reloaded is not yet ready for general release