The new Portal 2 DLC ‘Peer Review’ is now available to download for free on PC, Mac, Xbox 360, and PS3 from today. The new Peer Review add-on created by Valve brings with it a new cooperative mode, ...

Both entries in the Portal series have some deep roots in indie games, and one of the primary inspirations for Portal 2 is now available on Steam. The sequel's gel mechanics originate in a student ...

Portal: Revolution isn't just "more Portal." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Remember when Valve made an ingenious pair of puzzle ...

Those that are craving a whole new Portal adventure will probably be interested in Portal: Revolution, a big new mod filled with new puzzles and original voice acting. We're probably not going to get ...