Myst is a graphic adventure video game about some poor soul who crashes on an island and is forced to solve esoteric puzzles by two guys trapped in books.
Myst sold like hotcakes covered in crack that had been soaking in a vat of PCP. People purchased CD-ROMS just to be able to play the game. Of course bear in mind that this was all going on before the invention of Internet porn, so the enjoyment you could get out of a personal computer at the time was perhaps slightly more limited than it is now.
A parody computer game, Pyst, was released in 1996. Heavy on jokes and lite on puzzles, the game featured trailer parks, defecating seagulls, mysophobia, suicide notes, and a topless John Goodman in a hot tub.
A sequel, Driven, was planned, but since Pyst went virtually unplayed, the project was cancelled.