Battle of the Evil Saucers is a combination of an arcade action game and an RTS game. The focus is on the arcade action, where the player controls a UFO and shoots at enemy troops and UFO. However, the goal of the game, which is to gain control of the most control points on the map, is achieved through the RTS element. The RTS part of the game is played on a 2D ground map, while the arcade part is played on a 2D plane above ground. The setting of the game is in the future, when aliens called Evil, have taken control over Earth to use mankind in their war games.