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 ...

Portal Reloaded, the popular community mod for Portal 2, is getting an exciting new update called "The Cooperative", which will introduce an additional 20 puzzles designed specifically for cooperative ...

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 ...