In addition to audio and video media, LinuxMCE can play games originally designed for many different game systems. LinuxMCE contains a copy of the Multiple Arcade Machine Emulator (MAME) to play arcade games, and the Multiple Emulator Super System (MESS) to play games meant for many home video game systems.
LinuxMCE currently can support the following game systems:
With each game system, LinuxMCE presents integrated controls for all supported control methods, and provides a seamless way to import, catalog, and play all the games stored on your core or any attached storage device. Simply copy the ROMs into their respective system folders, and LinuxMCE will attempt to identify, and tag each one to the best of its ability.
More info can be found here