DOOR DEFENSE, a very bloody action game for stress relief! You have to guard a very important object of the storage of radioactive substances! And this object has got the attention of the zombies who think that eating sewage can become super-zombies. Well, you are the security guard course must let one thing entrusted to you inside of a room! And since you are on the basis of the weapons, and the weapons are not much - only multi-barrel machine gun! But that is enough to turn a zombie into mincemeat!