Orbital TD is described as '2112. Earth suffers from overpopulation, lack of food and medicaments. Space fleet under your command goes in search of a new world' and is a Tower Defense game in the games category. There are 1 games similar to Orbital TD for Android and iPhone. The best Orbital TD alternative is Cereus.
In the crowded genre of tower defense, Cereus has been hailed as unique, refreshing, clean, simple to control, and easy to learn. Best described as a cross between Tower Defense, Geometry Wars, and Asteroids, Cereus feels like a retro game with modern touches.
