The objective is to kill the villagers of your enemies. To do this you must build tons of towers and you get instant build you he doesnt have to move around to build the towers. You can either do this in 1v1v1v1 or 2v2. You also get god powers every now and then. YOU MUST BE ISIS to play this otherwise your enemies will just kill you with god powers as your monument wont be able to stop them.