The Mac version actually included two game programs. One was a full-on application while the other was a Desk Accessory which could be installed and run from the Apple menu over whatever regular application you were running. Pretty handy for slacking off on projects if you were working with an older version of the OS that didn't support Multi-tasking.
This is one of the most-ported games of its day, with versions for more than a dozen system in existence. Other than those already documented, the game was released for the Acorn Archimedes and one of the few titles from a major company for the SAM Coupé.