Set 500 years after a killer asteroid slammed into the Earth, humanity has been evolving across scattered and isolated worlds within a few thousand light years of Earth, which is now a mostly lifeless ball of rock and polluted water. These pockets of humanity are descended from rescued humans from Earth and were purposely scattered by their rescuers the Neireen - descendants of the fabled Atlanteans. Now, many of these Tribes of Man have evolved to become space faring civilizations and are making contact with other Tribes and with alien races. There are two categories of alien races, Evolvers and Colonizers. The Colonizer races were all created long ago by an ancient race commonly called the "Colonizer Race". The Colonizer Race terraformed thousands of worlds and created servant races to create their empire. However, the Colonizer Race mysteriously disappeared and their servant races were left to their own devices. The Evolvers are just like the Humans, they came about naturally without any interference.