GameSpot may get a commission from retail offers. According to GLaDOS, Portal 2's dry-witted antagonist, scientific achievement is all about cooperation. That's why one of history's greatest ...

Valve has released an update for the classic title Portal 2 with a big list of changes. Despite Portal 2 being a decade old, this patch implements multiple additions and fixes a series of issues ...

Valve recommends you sit down for this announcement, though you might also want to jump into the air and yell in excitement. If you really like playing Portal 2 co-op, that is (and who doesn't?). The ...

From the beginning of the single-player story to the end of the co-op mode, Portal 2 is a novel, unforgettable experience. The highly anticipated sequel to 2007's Game of the Year, Portal 2 is a ...

Eight years after its release, Portal 2 is still getting some love from Valve. A new update for the 2011 platform-puzzler has just been posted, fixing, improving, and adding a bunch of different ...

All the Latest Game Footage and Images from Portal 2: Peer Review Portal 2: Peer Review includes an additional course for Portal 2 co-op campaign, dubbed "Art Therapy"; as well as Challenge Mode for ...