Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today announced the free Portal 2 DLC titled “Perpetual ...
Valve has announced the free Portal 2 update, Perpetual Testing Initiative, is now available on PC and Mac. The DLC allows players to "easily create, share, and play Portal 2 puzzles," via the in-game ...
Portal 2 has been given free DLC on PC and Mac. The 'Perpetual Testing Initiative' update is an easy-to-use editing tool that will allow users to create their own puzzle rooms and share them to the ...
Portal 2's map editor DLC has received a release date from Valve. Titled the 'Perpetual Testing Initiative', the DLC will be available for PC and Mac on May 8. The free download features tools that ...
Excellent news gentlemen. Our friends over at Aperture Science have begun work on the Perpetual Testing Initiative for Portal 2. How will this work you ask? Well, Cave has come up with a fine and ...
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