Short Gameplay: Your task will be ... survival. A horde of zombies ready to eat you at any moment. Play with friends and build a blockade of the improvised stuff. Due to the physics engine, Source, you can build a variety of barricades. Are you ready to confront a monster?
Your task - search and destroy. But..WTF??!? Zombies in laboratory! Security system attack you! Take cover, build barricade and defend yourself!