HighMoon is a game similar to "Artillery" or "Worms" -- but it takes place in the universe. There is a planet system between two flying saucers. The gravitational fields of the planets and moons change inevitably each ballistic curve. It is not easy to eliminate an enemy. If you miss it, the shoots can change their direction and become dangerous to the attacker. HighMoon can be played against a computer or a human opponent in many planet systems.