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 ...

The Portal Reloaded modification for Portal 2 has today released its Cooperative update bringing in new puzzles to solve in Co-op mode. According to the Steam Page Portal Reloaded is a free, community ...

My 9yo son and I have recently played through Portal 2 single player, and he really wants to play Coop. If I understand correctly, for me to play coop with him, I'd have to pony up $$$ for a second ...

The new patch for the 10-year-old game is now live on Steam. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Valve's ...

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 ...

After a short teaser and reveal at PAX, Valve has released the full co-operative trailer for Portal 2, featuring two hugging robotic buddies and more GLaDOS. Click the 'play' button below to watch the ...

Portal 2 beta levels have always been a tightly-held secret on Valve's part, with the Steam developer having kept a secure lock on development assets from their beloved puzzle game series. A previous ...