MacMAME is part of the MAME project, a non-profit organization dedicated to preserving the history of arcade videogames via emulation.
MacMAME achieves this by running the original program code found in the arcade games. As such, it is much more than a reproduction, it is essentially that same game running via an emulated layer inside your Macintosh.
- Updated to match Win32 MAME 0.103u2. [Brad Oliver]