Alien Swarm

A swarm of invasive aliens have taken over a colonized planet in the year 2052.Marines are deployed to rescue any remaining survivors or if need be eliminate the colony, as they try to stop the spread of these vicious creatures before it's too late.

  • You can choose to tackle this game in Single player or group up with four friends to take down the alien threat.
  • With four different classes too choose from with over 40 different pieces of equipment, the way you play the game changes with each play through.

Valve Corporation
Original US Release Date: 
July 19, 2010

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