Another World is probably one of the most surreal and atmospheric games I've ever played, so this is a must download and buy in my opinion. Games like this isn't made anymore, so just get it while it's hot.
The game is released as good ol' shareware, so you'll get the fullversion, and then unlocks it by buying a serial key for it :)
Another World Postmortem
Download Another World Remake (Torrent)
Buy Another World Remake