ICBM3D, a 3D version of Missile Command. The game ends when your cities have all been destroyed. You only gain replacement cities by acheiving certain score thresholds during each attack. The differences between Missile Command and ICBM3D is that ICBM3D, as the name suggests, provides a 3D perspective. 1-player 3D action.
Higher levels have more, and faster missiles.
View from any point just above to just below your cities. View from any point just to each side of your cities. View from the point of view of any incoming missile. Easy support for different languages. ICBM3D comes as C source code.