Near a small town a portal was opened from which demons tumbled down. A large army they are moving towards the city center. You in the game Tank vs Demons will command the tank. Your combat vehicle will take its position on a specific city street. You will have to wait until the demons appear and point your gun at them. When ready, start firing a cannon. Shells falling into demons will destroy them. Each enemy you kill will bring you a certain amount of points. On them you can buy new types of ammunition.