The designers at Valve aren't particularly prolific when it comes to games, but what they lack in volume they more than make up for in passion and polish. While big titles like and soak up most of the ...
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Best free co-op games on Steam

Are you and your friend looking for free-to-play co-op fun? Then, try out the following fantastic games on Steam.
Wow, here's a Friday surprise. Valve just announced that it's releasing a full version of Alien Swarm, a co-operative shooter based on an old Unreal Tournament 2004 mod, next week. And it’s free. Keep ...