Here's another game which is FAR outside of traditional design ideas.
The GraveYard
Game Description-
The Graveyard is a very short computer game designed by Auriea Harvey and Micha�l Samyn. You play an old lady who visits a graveyard. You walk around, sit on a bench and listen to a song.
It's more like an explorable painting than an actual game. An experiment with realtime poetry, with storytelling without words. Anyone can try it!
Note: Buying the full version of The Graveyard adds only one feature, the possibility of death. The full version of the game is exactly the same as the trial, except, every time you play she may die.