Not to be confused with Videx's [MacGammon and Cribbage][1].

MacGAMMON! �1984 Expert Systems. By Thomas Hoffman and Steven
Slesinger.

Expert Systems, which also went by Expert Software Systems, wrote
their game's title at least five different ways:

 * MacGAMMON! (magazine ad, diskette sticker, title screen)
 * MacGammon! (boot screen, disk name in Finder)
 * MacGAMMON (Apple menu, about box)
 * MACGAMMON (application name)
 * McGAMMON (owner resource)

Compatibility
Architecture: 68k

  [1]: http://macintoshgarden.org/games/macgammon-and-cribbage