The cake is a lie. Anyone who is a fan of puzzles, sentient computers that can kill you, and guns that create inter-spatial portals — well, you’ll dig Portal. In 2007 Valve gave gamers an exceedingly unique playing experience by not only tying our brains in knots with deeply involved gameplay that required significant forethought, but did so with the kind of suspense, pacing, and twisted humor that lends to a strong Pixel to Projector candidate.