The Megacorporations created their own version of hell for the remnants of humanity left behind during the Exodus. Clouds of toxins seethed through the atmosphere. Nuclear fires seared the earth. The very ground shook in torment and anger. Earth was abandoned by the best and brightest of the Megacorporations during their race across the Solar System. Humanity's cradle had been abandoned and forgotten by all but a few. For Old Earth was gone, or so the Megacorporations believed. Below the toxic clouds and amongst the ruins of civilisation, life somehow prevailed in the face of the mutagens, toxins , and terraforming agents that surged across the planet's surface. Changed. Mutated. Born of a fiery genesis. Old Earth had become Dark Eden. This source book covers Dark Eden, the world once known as Earth. Designed to be used on its own, it will also perfectly supplement the Dark Eden Campaign.