Plot: Fieldrunners 2 is a tower defense video game, the sequel to Fieldrunners, developed by Subatomic Studios. It was released on July 19, 2012 as an iOS title, specifically designed for the iPhone and iPod Touch. It is the third release from developer Subatomic Studios. Wikipedia
Plot: Fieldrunners is a tower defense video game developed for several platforms. Originally released on 1 October 2008 as an exclusive iOS title, the game was later ported to Nintendo DSi, PlayStation Portable, PlayStation 3, and mobile phones. Wikipedia
Plot: Great Little War Game is a modern military 3D turn-based strategy video game developed by British studio Rubicon Development. It has been released on App Store, Apple's App Store, Android, PC, iOS, Google, BlackBerry, and other platforms. Wikipedia
Plot: Anomaly: Warzone Earth is a real-time strategy tower defense video game by 11 bit studios. The game was initially announced in late 2010, and released on April 8, 2011 for Windows and Mac OS X. Wikipedia