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Co-op added to Portal 2's Perpetual Testing Initiative

Xav de Matos, @Xav

"You should sit down," the Portal 2 blog recommends, because there's big news in the world of science. Valve has added co-op to the Perpetual Testing Initiative – the company's fancy name for the hit game's level creator. Meaning, armchair designers can now publish co-op maps for users to consume.

Valve has also added a "Quick Play" feature that creates a "never-ending, auto-generated" playlist of the highest rated user-developed maps. "It has literally never been easier to figuratively jump in and literally play some Portal," the wordsmiths at Valve claim.

As an added treat, Valve is offering current owners of Portal 2 a 75% off coupon for a second copy of the game. Just the thing you'll need to get a friend in on the action. Who are we giving out copy to? American astrophysicist and director of the Hayden Planetarium Neil deGrasse Tyson, of course! He knows a thing or two about intricate bodies of work. As soon as he accepts our Steam friend request.

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Free Update to "The Perpetual Testing Initiative" Adds New Features

August 16, 2012 -- Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today released a free update to Portal 2's in-game puzzle maker that lets users design and publish co-op test chambers.

Since its release on the PC and Mac in May, 2012, community map makers have used the Steam Workshop and Portal 2's in-game editor - called the Perpetual Testing Initiative - to create and share more than 170,000 single-player test chambers. With this update, the community will for the first time be able to design puzzles that require two players working cooperatively to solve.

This update also introduces a "Quick Play" feature, which allows players to quickly access the top-rated maps in various categories.

To help players find a co-op partner, Valve is giving every current owner of Portal 2 a Steam coupon for 75% off a copy of Portal 2, which can be given away to other Steam users.

Portal 2 holds a Metacritic score of 95% and has been awarded numerous Game of Year awards. It features expansive single and cooperative multiplayer game modes.

For more information on Portal 2 and its downloadable content, please visit

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