Bloons TD (Series), Plants vs. Zombies (Series), Fieldrunners (Series), Pokemon Tower Defense, TowerMadness, Military Tower Defense, HexDefense, Beware Planet Earth, Sentinel 3: Homeworld, Robo Defense, Defense Zone, TapDefense, Towers of Oz, Swords and Soldiers, Innotoria Tower Defense, Iron Marines, Anuto TD, Realm Defense, Genetic Invasion, Go home dinosaurs, Saturn Defense are some alternatives to Radiant Defense.