FREE: Killing Floor Guest Pass (Steam)

The listing, Killing Floor Guest Pass (Steam) has ended.

This Steam gift is a guest pass for the game Killing Floor. It will give you full access to the game for 3 days. You need a Steam account to use it.

Here is the game's Steam store page: http://store.steampowered.com/app/1250/

To quote the description on that page:
Killing Floor is a Co-op Survival Horror FPS set in the devastated cities and countryside of England after a series of cloning experiments for the military goes horribly wrong. You and your friends are members of the military dropped into these locations with a simple mission: Survive long enough to cleanse the area of the failed experiments!

The game recently reached 1 million sold copies.

I can either gift it to your e-mail or send it through Steam trade. You don't need to activate it immediately, you can wait until you have 2-3 free days to play.