Kingdom Defense Free

War is coming! Your kingdom is under attack. Defend now!
Your alliance includes Human, Dwarf and Elf named Justice Flame have to defend royal tower and survive the oncoming attack from the Troll, Tauren and Orc monsters, extremely Undead zombies who want to dominate all the world.
Kingdom Defense is completely free to play, with the option to purchase cannon gun and heroes to help you pass through the levels faster.