Alien Swarm
Valve · 2010 · Free to Play, Co-op, Action, Multiplayer, Online Co-Op
Trailers & screenshots
About Alien Swarm
Lead a four-person squad of elite marines through a bug-infested alien colony in this free tactical co-op shooter with a top-down perspective, where you'll customize loadouts from 40+ weapons and fight through procedurally varied environments. The complete Source engine code and mod tools are included, making it as much a developer's playground as it is a fast-paced action game.
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
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Players praise this free shooter for its fun gameplay, thrilling action, and enjoyable multiplayer with interesting creature designs, appreciating its simplicity and nostalgic appeal. Some note the game has limited content depth and imperfect presentation, though enthusiasts of classic shooters find it well worth playing despite these minor drawbacks.
Yes, but better get into Reactive Drop as it is still supported, and in general has more in it.2 found this helpful
Old games make me really happy.1 found this helpful
Really fun game
Although the resolution isn't perfect, this game is amazing in many ways more than one. Even if I've only played for two hours, every second was thrilling & exiting. I highly recommend this game to anyone who likes shooter games.
simple, fun, and its FREE!
i like the multiplayer of this game its really fun and so are the creatures but theres not really much to say about this game you will just have to play it yourself to see how great it is
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