Clash of Clans is strategy-based MMO that combines strategic planning with fast-paced combat. Players have to build your city, manage resources of gold and elixir, and raise an army of Barbarians, War Wizards, Dragons and other fighting creatures. Part of the game is that a clan of players can be joined and players can rise through the ranks. Alternatively a new clan can be created to contest ownership of the realm. Besides multiplayer combat there is also a campaign battle sieging the towns of goblins. Combats is similar to games in the tower defense genre where besides the fighting creatures turrets, mortars and archer towers defend the cities against the incoming attackers.