Valve giving away their new game 'Alien Swarm'

It looks kinda like a cross between a top-down Left4Dead and the old classic Alien Breed games.

There's plenty more videos to check on the site, in case you're not sure if you want to download it. However, it's FREE so there's not much to complain about. I guess they want to up the numbers of people playing on Steam.

store.steampowered