is an amazing $8 survival-horror game from the creator of Canabalt, and I highly recommend you all give it a go. I sat rapt in front of my computer for about three hours with it last night.
I think one of the best parts of the game is that the sound design forms the majority of the "environment," and most of the UX is actually based on what you imagine the world the world to be. There are myriad blips with weird names, but the only description you have of what the objects are are the unique noises they make as they move around (or crash into) your capsule. I've never really played anything like it.