Modern Defense Elite by Broken Bone Studios is a fun retro feeling iPhone game with both TD and RTS game play. There are 3 different game modes most with 4 different difficulty settings, which allow for loads of game replay. There is customizable game play in the “skirmish” game mode allowing users to determine the number of enemies and the amount cash for their troops. There is also a companion FREE version of this app called Modern Defense Full Version FREE in the iTunes App Store. Watch the iPhone app video for a demonstration of this application.