Perpetual Testing Initiative

Update for Portal 2 Map Maker Adds Co-op Support

This update also grants every Portal 2 owner a 75% off coupon for the game to give to a friend. Continue »

Portal 2’s Cave Johnson Tells You All About The Upcoming Map Editing Tools

And because I can’t go another sentence without cracking a joke regarding lemons and burning your house down, I’ll go ahead and pass the mic over to Mr. Johnson. Continue »

Portal 2 Level Creation Tools Available May 8 on PC/Mac

This new in-game puzzle-maker allows players to easily create, share, and play Portal 2 puzzles created by themselves, their friends, and the Steam community. Continue »