Last year, in a GDC session called Experimental Gameplay Workshop, I got a chance to see an astonishingly creative indie game called Braid. The game's creator, Jonathan Blow, walked us through what at first looked like a rather familiar 2D plattformer. But the game lets players control the flow of time, and it does things with time that Max Payne and Prince of Persia:TSOT never dreamed of. Now Arthouse Games has a great preview of the latest version of Blow's work in progress.
BEWARE: The preview is full of spoilers, but in the end they're even more blown away than I was:
