System's Twilight

A shareware puzzle game for early versions of Macintosh, this was a self-published game developed by Andrew Plotkin.
 Mac

Overview

System's Twilight: An Abstract Fairy Tale is a combination of graphical puzzles and interactive fiction created and self-published by Andrew Plotkin. It is available as freeware for the Mac OS Classic environment, but can be run in emulators on various platforms.