Epic Tower Defense Web-based 3D Tower Defense, published by Shockwave.com. Harmonic Convergence Tetris-meets-rhythm-game, with 10 unique environments. Hordes of Orcs 2 The highly anticipated sequel to the smash hit tower defense game ‘Hordes of Orcs’. Hordes of Orcs Fast-paced 3D tower defense, published by Freeverse. When Orcs Attack MrJoy Inc’s original 3D tower defense game, precursor to ‘Hordes of Orcs’.