Wake up you pillock!
Strictly speaking, the waves upon waves of zombies that you’re shooting at in Tripwire Interactive’s Killing Floor are actually “specimens.” They’re the results of the typical experimentation gone wrong: Horzine Biotech, a London-based company, has been cloning humans and manipulating their genes, turning them into super-powered mutant zombies. And one day, a lab tech must have forgotten to lock the door or something, and the whole lot of them poured out into the streets and began munching on everyone they could see. More Brains!
Honk If You Love Brains 