Xeon is described as 'emulator for the X-BOX platform. Xeon runs only one commercial game and it is Halo NTSC version, it plays very roughly, the images are too slow to get in game, of course the emulator is still under development' and is a Game Emulator in the gaming software category. There are three alternatives to Xeon for Windows, Linux and Mac. The best alternative is xemu, which is both free and Open Source. Other great apps like Xeon are Cxbx-Reloaded and XQEMU.