Created by Steve Meretzky and Douglas Adams himself, The Hitchhiker's Guide to the Galaxy is one of the funniest, most impressively boxed and nigh on unsolvable text adventures ever released by Infocom (or anyone else for that matter). Still, it also is an absolutely brilliant game and one you can easily grab in its complete glory via this HHGttG for Apple Macintosh eBay auction. Seller ships worldwide. Oh, and you can play the excellent BBC remake here. For free of course. No tea included.