Alien Swarm adds 3rd person camera, depth of field, improved dynamic shadows and a wide variety of gameplay additions to the Source engine. Valve is also releasing the complete source code base for Alien Swarm that features updates to the Source engine as well as the SDK with full Steamworks integration. Official website and forums (good for finding gamers to play as team) is hosted at. Alien Swarm includes a modified Source engine between the L4D2 and Portal 2 iterations that is separate from other Source games.ĭownload the free Alien Swarm game: Īlien Swarm download will unlock and live from July 19, 2010, 8 PM GMT. It also does not support controllers currently. Mac OS X version on Steam is not available yet though. The gameplay trailer video of Alien Swarm:Īlien Swarm is now been released for free to Steam players on Windows platform.

4 unique classes and 8 unique characters.Over 40 weapons and equipment with countless loadout configurations.

Unlock persistent items by gaining levels.Tactical, 4 player co-op action game with a top-down perspective.Alien Swarm players can play in either Campaign Mode and Offline Practice Mode. The game includes persistent statistics, unlockables and achievements. Gamer and player can choose to play the among the 4 IAF Marine role classes of Medic, Tech, Officer and Special Weapons, with each class has two selectable characters. And now Valve is releasing Alien Swarm as free full version game, increasing the number of free games on Steam.Īlien Swarm multi-player game allows up to four players to join a single co-operative game, with the aim to progress through science-fiction themed levels killing waves of aliens with a selection from a 40-strong arsenal of weapons. The game is a remake of the Alien Swarm mod for Unreal Tournament 2004, developed by the original team after they were hired by Valve. Alien Swarm is a futuristic first-person top-down shoot-em-up shooter computer game and Source SDK release developed by Valve Corporation.

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