Orbit War

"Orbit War is a stylized game of tactical space combat in the 21st century . . . The playing board consists of eight concentric orbits around a central body; this central body represents a star in all games except the invasion scenario, in which it represents a planet."

Players control individual ships orbiting around a planet. The object is to defeat the enemy fleets by destroying their flagships. Written orders for movement and combat are executed simultaneously.

Note that this is an entirely different game than Wallace Wang's Orbit War released by Steve Jackson Games.