I used to play text games as a young boy. To this day I don't think I've ever enjoyed a game more than "Enchanter."
Zork I, II, and III on an Apple II+ (48K and no lower case key, woo-hoo!) rocked.
InfoCom!
I absolutely loved "Enchanter". The hardest one though was Suspended". Never did finish that one. I may have to go into the cellar and hook up my Atari 800xl and boot it up and give it another shot.