David OReilly recently announced his latest endeavor, a game called Mountain. Check out this feature list:
No Controls
Time Moves Forward
Nature Expresses Itself
Things Grow and Things Die
Once Generated, You Cannot be Regenerated
Yup, that's right. He's created a game in which you play as the Mountain itself - observing the passing of time. There's more info here but really, what more do you need to know?
