This is a 3D action tower defense game. Your goal is to protect the castle by all means necessary and you will start out by choosing a map that you want to play on and a character type that suits you best and the options are The Keeper and The Archer. When you play as the Keeper you will have a gun that can shoot at the creeps from a decent distance and you can also do more damage from melee when you are closer to the monsters. It is essential to build towers to help you decrease the creeps health points. Your towers can be damaged as well so you need to keep an eye on them and keep repairing them or they will be destroyed.