Zombies have taken over the world. You do not know where they come from, but all you know right now is that you need to escape. You are able to board a train together with some of your men, but they all died. Now, you are left alone to defend the train. The idea here is to defend yourself against zombies. There would be zombies knocking the door of the train and you need to get over there to quickly kill them. You can easily locate the zombies using your radar. You would earn money from killing zombies and you can use the money to buy better weapons.