Starlings is a game by Russ Morris that I find hard to explain:
http://www.vimeo.com/8024075
Seems the game is about create an evergrowing flock of birds, while audio and visual effects increase to create a link with the player’s emotions.
Sounds as different an idea as a game called Flower, released sometime ago.
If you’re interested, go read more about it at the author’s blog post about Starlings!

Source: IndieGames