I discovered a beauty of a soundtrack from a video game a few months back. I've been listening to it recently and one track really stands out for me. For me, this is the track that does it for World of Goo. It's haunting, dark and beautiful. It's like escaping through the toughest of situations and finally making it to a new, more promising place. Listen to the epicness of a track, "Jelly"... 
 
 
 Kyle Gabler is the composer and the soundtrack he has made free on his website, for those who want more.