Alien Swarm is a new co-op multiplayer tactical shooter game unveiled by Valve recently and surprisingly it has been made available as a free download. It features 4 player Co-op mode with 8 character classes to choose from and over 40 weapons, your squad’s objective is the kill the swarm of aliens inside an off world colony and like other Valve games team work is the key to survival here.

Trailer of Alien Swarm

and if you are wondering about the crazy Demoman parasite hat worn by players in Team Fortress 2, it can be yours by completing two co-op missions in Alien Swarm.

So what you are waiting for head over to Steam and download it for free and start playing.

Minimum System Requirements of Alien Swarm

• Windows 7 / Vista / Vista64 / XP
• Processor: Pentium 4 3.0GHz
• RAM : 1 GB for XP / 2GB for Vista
• Graphics card: DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
• At least 2.5 GB of free space
• DirectX 9.0c compatible sound card

Download Free Stream Game: Alien Swarm – Download Link (Steam Required)

File size: 2060MB

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