Since we've cleared up that the original poster wants to play any Zork game (i.e. he wants to return to Zork games) rather than play the graphic adventure game titled "Return to Zork", this opens up a much better solution.
Why not get "Frotz" for AmigaOS? It's an Infocom Z-machine interpreter that can run the modules of any Infocom text adventure and even dozens of excellent Z-machine modules created by modern text-adventure authors.
http://www.amigareport.com/ar413/review4.htmlhttp://www.ifarchive.org/indexes/if-archiveXinfocomXinterpretersXfrotz.htmlI'm not sure what version of AmigaOS it needs, but I've had it running on my Amiga 2000 / 040 in the past and since text adventures aren't processor intensive, it could probably run on a 68000 without problems (I've had it running on a 486 too).
