in my opinion, it was
the game that brought us out of the pixel art ages and into the polyon-based graphical gaming style in the mid 80's.
Out of This World, for Apple IIgs, Tandy, etc etc..
glad i could help trigger some memories.
It took me months and months to remember the name/title of the game and track down information on it... (then they invented search engines) for a long while I thought it would become the 'unknown lost game of my childhood' or something of that nature