The Enchanter, Sorcerer, Spellbreaker trilogy was also a lot of fun.
And of course Hitchhikers Guide to The Universe :-)
A Mind Forever Voyaging
Trinity
Both games really emphasize the narrative bankruptcy of modern games. The fact that people were developing games like this back in the 80s is kind of mind blowing. If Bioware put out 'A Mind Forever Voyaging' with nice shiny graphics the gaming press would be all over it as the greatest game ever.
There are so many things that you have to do in order not to render the game unfinishable further down the line, and they're thrown in so quickly and so covertly that I cannot believe it isn't satire.
I mean, if you take it as anything apart from satire it's just unforgivably bad game design.
Adams was involved in writing it, and he was definitely into computers. He was the first person in the UK to own an apple machine. He would have almost certainly played zork/dungeon and such games, and therefore being Adams he would not have been able to resist parodying their ridiculous nature.
- Circuit's Edge: A cyberpunk game set in the Middle East http://en.wikipedia.org/wiki/Circuits_Edge
- Mines of Titan http://en.wikipedia.org/wiki/Mines_of_Titan