The belligerent aliens from another Galaxy conquered Mars. Free the planet from the invaders. As a pilot of a space ship, join battle to free the population of the planet. Well-equipped detachments of enemies' spaceships stand in your way. Destroy the enemies and free the conquered territories from level to level. Peaceful citizens help you by providing weapons, ammunition, and equipment for the spaceship. Join your counterparts from all over the world and beat your best score! If your score is among the Top 10, you can upload it to our Web site and thousands of other players all over the world will be able to see your highscore! Are you up for the challenge? Download Operation Mars and Play for Free!