The puzzle editor will allow players to create, share, and download Portal 2 levels. Players can publish their creations to the Steam Workshop, where users can browse, vote on, and select other levels ...

GameSpot may get a commission from retail offers. In the Portal games, the rogue AI GLaDOS gets her kicks by putting players through a series of deviously designed test chambers. Valve is giving ...

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, ...

Acclaimed first-person puzzler Portal 2 gets new DLC "this summer", developer Valve has announced, and you won't have to pay a penny for it. The pack, referred to only as DLC #1, will include new test ...

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 2 has received a split-screen co-operative mode for the PC. The latest Portal 2 patch is available to download from Steam, and adds split-screen co-operative play for PC users, as well as Big ...