The game can be played in Campaign Mode, Zombie Invasion Mode and Boss Trials Mode. You will play this incredible online defense based game as a commander of your side. In the Campaign Mode of the game, you journey through twenty waves of enemies and bosses. Level up, skill up and upgrade between waves. Submit your total score upon dying or completing the game. In the Zombie Invasion Mode of the game, you have to survive for as long as possible in a never ending zombie invasion while leveling up and upping your skills. In the Boss Trials Mode of the game, fight each boss back to back with all skills and artifacts available in your arsenal.