The concept of playing a game within a game is causing me to go crosseyed! (Oh no, I've gone crosseyed!)
Yet, I have found two! Bejeweled and Chess.
I... must... play... more games!
In other news, Boon posted a wonderful post about the hazards of losing yourself in the game to the point where you lose sight of what (may or may not have) brought you to the game in the first place. And he posted a link to a pretty amazing YouTube video.
Personally, I think his post was designed to try to make me reset one of my characters before he hits the requisite level 30. His tricks will not work on me.
However, I did manage to trick his level 1 paladin alt into going to Theramore. *giggle*