Galactic Battle is a space shoot-em up arcade game for one player.

Its setting is an interplanetary spaceship which is controlled by its captain - you! - against attacks by hordes of evil aliens. Your object in the game is to defeat as many of the enemy as possible, while enhancing the features of your ship, and maximizing your score.

The game features an infinite number of levels, each consisting of 11 different waves of aliens. If you survive all 11 waves in one level, you proceed to the next level of play. Each succeeding level is increasingly difficult.

You must maneuver your ship around the lower quarter of the game area and try to shoot the aliens overhead, while dodging multiple alien shots fired at you as they approach.

Throughout game play, you can earn "medals" which you can use during designated waves to "purchase" defensive and offensive enhancements for your ship. This feature, a vital tool especially for the higher levels of play, requires strategic planning and preparation early in the game.