Kingdom Rush: Tower Defense TD

Kingdom Rush is a tower-defense game set in the classical fantasy/medieval world. Your goal is to defend a straggling kingdom of humans, elves and dwarfs from waves after waves of rampaging goblins, orcs, trolls and other monstrosities. To achieve your goal you are equipped with two spells and four basic towers - each with its own unique range and damage characteristics, upgrade tree and special abilities. While each tower has its own role - barracks produce soldiers that hold your enemies, rangers do physical damage over long distance, mages do magical damage and artillery does area damage - the number of towers and their location is limited to designated plots of land. Gold for your buildings is another limiting factor and could only be acquired by slaying your foes. The story takes you from a small city experiencing a freak goblin raid to blasted wastes swarming with demons and undead. Each map of the dozen available has three possible game modes, ranging from normal to difficult with special restrictions unique to each map. Finishing the different modes with a set number of lives remaining awards points that could be used to enhance your towers and spells. Additionally the game has a detailed encyclopedia featuring information on all possible towers (and their upgrades) and enemies. Over 50 achievements of various difficulty or obscurity can be earned over your adventure.