Keef the Thief: A Boy and His Lockpick

Development

From http://www.naughtydog.com:

Keef was a classic sword and sorcery role-playing game. While we were making it, Andy entered sarcastic text as a place holder for what we believed would be the real text in the final release. EA liked the humor so much that they decided to make the entire game a comedy. The effect that this decision had on sales was no joke, however.