From the Modiphius Entertainment press release
Mutant Chronicles takes you on a full throttle dieselpunk sci-fi ride through a solar system beset by corporate intrigue and the invasion of a terrible dark alien force. With technology failing due to the insidious effects of the Dark Symmetry humankind must fight back against the Dark Legion hordes whilst dealing with in-fighting and conspiracy from within.
The Solar System is a roaring mayhem of death and war. The surfaces of the inner planets have been swept clean by the violent onslaught of the dark legions storming hordes of Nepharites, Razides, Pretorian Stalkers and Undead Legionaries. In the enormous cities of the far and distant future, heretics devoted to the destruction of humankind stalk the dark backstreets and gloomy alleys spreading their teachings of greed, jealously and war [From the 2nd Edition Back Cover]
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.
A fateful exploratory mission to Pluto unleashes an ancient evil force 'The Dark Symmetry' upon the thinking machines of man. As technology fails (and even fights back), mankind is beset with conspiracy and corporate intrigue from within. Dark things gather on the edges of the colonies and whilst corporate war consumes the greatest armies of man, the Dark Legion’s citadels rise up throughout the worlds of the solar system and terrifying armies march out to consume all. They were defeated long ago, they will not be defeated this time...
As the Dark Symmetry's malign influence on humanity grows, the Brotherhood with their strange powers, arise to unite the corporate armies as one and fight back.
A full re-write of the setting guides and supplements to include brand new material alongside the existing storyline plus a new cinematic d20 based core system designed by Jason Little (Star Wars: Edge of The Empire, X-Wing Miniatures Game).
New art will reveal never before seen parts of the Mutant Chronicles universe alongside the existing fantastic images by Paul Bonner, Peter Bergting and Paolo Parente. You can expect massive campaigns, fantastic accessories and miniatures produced in conjunction with Prodos Games specifically for the roleplaying game.