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Now Available - Proto Defense

Product Release - Valve
Feb 23, 2011
Proto Defense DLC is now available on Steam!

Team up with your friends in this free co-op turret defense game for ProtoGalaxy. Take on new bosses, 8 new achievements and compete to top the leaderboards!

In celebration of the new Proto Defense DLC, ProtoGalaxy is 50% off until March 2nd, 10am Pacific Time!


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