In the late 21st century a growing madness of plagues, wars, terrorism and environmental collapse led to the rushed terraforming of the colonies by the major corporations, an exodus from Earth and the final cataclysmic nuclear war. It takes hundreds of years to re-establish life as we know it on the inner worlds of our solar system. Imperial, Capitol, Bauhaus and Mishima now rule from their homes in the steaming jungles of Venus, the caverns of Mercury, the deserts of Mars and the many orbitals and asteroid homes of the solar system. Luna City is a vast neutral sprawl, many hundreds of years old, built up and over the first colony and mines.