It's been an exciting couple days at PAX, especially if you're a Portal 2 fan! We're following up the co-op campaign screenshots released yesterday - with actual footage from the co-op Portal 2 ...

The leaked gameplay footage is just shy of six minutes, but it gives us a good look at what players can accomplish in this game mode. Portal became popular as a ...

Portal 2 gameplay footage from E3 digs deeper into the story and shows off new gameplay features Valve showed off the first glimpse of actual gameplay footage for their upcoming standalone title, ...