Wired has an article up describing the author’s experience playing Passage, a short game developed for the gamma 256 event, which was created to encourage experimental gameplay (you can also read the creator’s statement after playing):
Wait: Did I call Passage a game? I actually meant to say poem. Because while Passage behaves like a game, it’s psychically and aesthetically closer to a superb and tightly crafted sonnet. More than any game I’ve ever played, it illustrates how a game can be a fantastically expressive, artistic vehicle for exploring the human condition.