In the year 2025, the telepathic monster Broodmaster Magnalux has established a base on Earth’s moon. As the human player, you must alert humanity to the threat, and rally armies, navies, and air forces against the alien menace. As the Broodmaster player, you must subvert the Earth, using your mind control to gradually take control of Earth’s most vital defenses.

Invasion of the Brood is a two player strategy game, in which the two sides have greatly different strategies, abilities, and even turn structures. Will humanity pull together to stop this alien invasion, or will the sinister Broodmaster take over the world? You decide!