Maze Mission Adventure Game 
William Soleau has had a steady output of shareware puzzle games since 1991. Quality of some of the games aside (see Ladder Man), this is an accomplishment in tenacity. If nothing else, Soleau Software is prolific.
Maze Mission Adventure Game may be one of his earliest; the game predates the Soleau Software brand. It’s clearly the work of a developer getting their bears. It’s riddled with typos and sits comfortably about five years behind graphics technology at at the time. But it’s pretty good. The game never progresses or goes anywhere, but it captures the fun of exploring and getting lost. » Read more about Maze Mission Adventure Game