Year of Release1987
The Advertising Blurb
There are no random events in XOR's labyrinthine palace and there is no premium on hand-eye coordination. You have all the time in the world to work out the precise nature of the hazards you encounter. Logical thinking, strategy and tactical problem solving are all part of the XOR experience. And XOR is not simply about finding solutions. If you can solve the entire puzzle (15 levels plus an encrypted anagram), you qualify to be a member of the ORDER of XOR, with a certificate and a badge to prove it.