Ah, Portal 2. While the allure of its mind-bending puzzles, and the witty, malevolent charm of its antagonists may be evergreen, it wouldn't hurt to have some new levels to play through once in a ...

All the Latest Game Footage and Images from Portal: Forever Testing Portal: Forever Testing Is a Fan-created Modification for Valve Software’s Portal 2, containing various custom-built levels for the ...

If you're starting to get bored of Portal 2, just wait until May 8, when the ambitious new piece of downloadable content, called Perpetual Testing Initiative, is released. The DLC will give players ...

After debuting all the way back in April 2011, not to mention racking up Game of the Year awards around the industry, Valve recently gave players a reason to return to their testing chamber for more ...

Valve announced today that Portal 2's in-game puzzle maker will be called "Perpetual Testing Initiative," and will be available free on May 8 for PC and Mac. The DLC will be capable of publishing ...