Orbit

Orbit © 1973 DEC [Digital Equipment Corp.]

Tasks the player with destroying a Romulan space ship that flies in a constant orbit around the player's planet. The ship is cloaked so the player doesn't know where it is, but the player's instruments can tell the distance between a photon bomb explosion and the enemy ship. The player has seven shots before the Romulans will attack. To fire the player needs to give an angle and distance to determine where the photon bomb should explode. If the explosion is within 5000 miles the Romulan ship is destroyed.