Alien Swarm is a top-down shoot-em-up. Up to four players can join a single co-operative game, the aim of which is to progress through science-fiction themed levels killing waves of aliens with a selection from a 40-strong arsenal of weapons. The game includes persistent statistics, unlockables and achievements. The game is class-based, with players choosing from the roles of Medic, Tech, Officer/Explosives and Special Weapons. Each class has two selectable characters.
Download:
http://store.steampowered.com/app/630/Trailer:
