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Alien Swarm
7/19/2010
Valve
About This Game
Co-operative multiplayer game and complete code base available for free.
Tags
ActionSingleplayerSurvivalAdventureMultiplayerStrategyClass-BasedOnline Co-OpCo-opSci-fiTeam-BasedFree to PlayTop-DownTop-Down ShooterShooterAliensThird PersonPvEModdableThird-Person Shooter
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