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 http://www.thinkwithportals.com.

Ah, was wondering why i got that random coupon. If anyone wants it just ask.

Ah, was wondering why i got that random coupon. If anyone wants it just ask.

ditto

Same here. I have an extra laying around too. I like the quick play thing.

Neat. Now the question is, can two people build the maps together? I've never messed with the editor so I don't know how it works.