Z: Steel Soldiers (originally released for Microsoft Windows simply as Steel Soldiers in North America) is a real-time strategy game released by the Bitmap Brothers in 2001 for the Windows platform and later by Kavcom Limited for the Android in 2014 and iOS in 2015. It is the sequel of their earlier game Z and follows the same futuristic military science fiction storyline and battlefield gameplay. The graphics are enhanced from 2D to 3D. As a result of a breach in peace negotiations players take control of one side as a leader of an army of robots. Playing the game primarily involves fending off robust opponents during battles to control a location whilst expanding one's forces. Objectives are met by occupying and holding territory rather than the more typical method of harvesting resources.