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Game Box for Alien Swarm (PC)

Alien Swarm PC

Free action game with cooperation mode in the classic style of Alien Breed. Players take on the role of soldiers with different specializations and have to break through levels full of dangerous monsters.

Action | science fiction | Isometric view | shooters

PC / Windows
Alien Swarm cover

developer: Valve Software

publisher: Valve Corporation

Official website

Game mode: single / multiplayer

Multiplayer mode: Internet, players: 1-4

English language game language: English

game release date for PC:


Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community.

Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility.

Along with the game get the complete code base for Alien Swarm that features updates to the Source engine as well as the SDK. Alien Swarm adds 3rd person camera, depth of field, improved dynamic shadows and a wide variety of gameplay additions to the Source engine.


Tactical, 4 player co-op action game with a top-down perspective

Complete game code and mod tools

Unlock persistent items by gaining levels

Over 40 weapons and equipment with countless loadout configurations

4 unique classes and 8 unique characters

Matchmaking, Steam Cloud, Steam Stats

64 achievements

Tile-based map generation tool

Powered by Source and Steam

Game score 8.4 / 10 calculated out of 366 players' votes.  

Age Rating

age requirements: 18+

System requirements

PC / Windows

PC / Windows

  • Recommended:
  • Pentium 4 3.0 GHz
  • 1 GB RAM
  • graphic card 128 MB (GeForce 6600 or better)
  • 2.5 GB HDD
  • Windows XP/Vista/7
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