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This is a hero defence with little amount of troops. First battle takes place in Osgiliath and then it moves to Minas Tirith. You have no money or place where you could recruit them. Heroes are Aragorn, Gandalf, Faramir, Boromir, Legolas, Gimli, Eowyn, Eomer and Theoden. Goal is to kill Sauron who appears at MT gate after you have won most of the enemies. I suggest to play multiplayer because bots won't do anything but they are good backup.