The Discworld books by Terry Pratchett have also been turned into three major CD-ROM and Playstation games. The first two games featured the voice of Eric Idle as the inept Wizzard (deliberately bad spelling), Rincewind. Rincewind used his many-legged (fairly intelligent) Luggage to store items for puzzle-solving. These are excellent, humourous, point-and-click adventures in the vein of the Monkey Island games. Knowledge of the earlier Discworld novels would probably be helpful in playing the games, although not essential.
The last official game was Discworld Noir and is a Pratchett-esque spin on a film noir. Also a point-and-click adventure it seems to be the game that has least relation to the stories of the novels.
The games were published in the following years: