Alien Swarm - a game and set for the development of modifications by a group of talented designers from Valve, creators recruited from the community modifications.
Together with his buddy on the force, using different tactics you have to fight against millions of beetles. And all this - absolutely free. Play with your friends, form your squad of four unique classes - fighters ISN Armed Forces. Plan tactics of their attacks, using the standard and unlocked weapons against devilishly persistent alien creatures. Make your way through overgrown, extraterrestrial colony, destroying alien invaders on the surface of a frozen planet, and in the mountain filled with lava pit.

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