A typical and addictive tower defense game. Build your towers and upgrade them to protect the castle from attacks of various monsters. Place the towers at good places so that they can reach as many monsters as possible. tower defense, tower defense game, castle defense, monster defense, arcade game, strategy game, mobile game, casual game, puzzle game, tower placement, tower upgrade, defense strategy, monster defense tips, best tower defense games, popular tower defense, mobile tower defense, offline tower defense