Although quite short and not much of a game, I just could not pass up posting a quick entry highlighting this exceptional effort that won the grand jury prize for best multimedia design in Rockstar's Upload4 online digital media competition.
Somnium Orbis is "an exploration of alternative means to progress through a surreal, otherworldly scene." In other words, you must figure out how to progress through each scene of the piece. The gorgeous and mesmerizing (and only slightly disturbing) work of art was created by Nate Horstmann and Peter Schmalfeldt.
(Remember, I said it was short, so no complaining about length(!) Enjoy it for what it is. ;)
Cheers to Garret for the link. =)