Audio Overload is a video game music player supporting a stupid number of different formats. It is available for Mac, Windows, and Linux.

Multiple Emulator Super System. Based on a hybrid of the MAME source code, this emulator strives to be to consoles and home computers what MAME is to Arcade machines. Whenever a new MAME is released, a new MESS is sure to follow. If you have any MESS related enquiries, then this is the place to post them.

Modeler is an arcade emulator currently running Sega System 32, Sega System 32 Multi and Sega Model 1 (not yet playable) games. The emulator is available for Windows, Linux, and Mac.

Available for both Windows and Mac OS, Nestopia is probably the most robust NES emulator available today, featuring cycle exact emulation, a ridiculous number of mappers, and lots of custom sound chips.

A new version of MAME for Mac OS X and Linux.

Zinc is capable of running Capcom ZN-1 and ZN-2 games and some games running on similar hardware. Supported games include most of the Street Fighter EX games, Rival Schools, Star Gladiator 2 and a few others.

A now-deprecated Cocoa port of MAME developed by Dave Dribin.

This forum contains threads about the original Macintosh port of MAME developed by Brad Oliver. This port has been replaced by MAME OS X.