Mars is a desert planet in the Milky Way, that was not seen but was metioned throughout the entire Destroy All Humans! series.
Mars was an ocean planet that was ruled by the Blisk, who were somewhat very cocky about it. The Furons deliberately assaulted Mars and reduced it to a dry desert. The Blisk were defeated in what was called the Martian War. All of the Blisk were destroyed except for one Blisk Warship, which crashed on Earth in Tunguska in the Soviet Union on June 30, 1908. While in Tunguska, the Blisk built a base from their crashed warship.
- Destroy All Humans! 2 (Mentioned only)