Located in the Vigilem galaxy the planet Didymus is home to the Pelarian species. A peaceful humanoid race, they are technologically advanced, having space travel and some knowledge of the existence of other alien species.
In 2250 Didymus was caught in the path of a freak meteor storm resulting in multiple large surface impacts. Luckily no major population centers suffered a direct hit however there are concerns about the dust and debris launched into the upper atmosphere from the impacts.
Dust and fallout from meteor impacts have a larger environmental effects than the Pelarian scientific community had first speculated. Sharp declines in crop yields are cause for concern, as well as a rise in respiratory and immune health issues globally, have scientist scrambling for answers. Eventually Pelarian scientist determine that the climatic changes, and recent significant increases in seismic activity, are due to changes in the planet core causing polar magnetic fluctuations.
In 2342 Scientist researching the causes of the drastic environmental changes on Didymus make a startling discovery. The planets core is indeed being changed but the cause is no longer a matter of academic speculation. The discovery of a vast network of machined tunnel reveals an alien technology buried deep below the planet surface. This alien hardware is using the planets core to power some massive machine that is devouring the planets raw resources from the inside out. It is believed that the meteors that had bombarded the planet years prior were actually the seeds for whatever this thing was.
After the discovery of a massive alien machine devouring the heart of their planet, several attempts are made by the Pelarian militaries to stop the alien technology and eventually the mysterious invaders respond. Hordes of mechanical creatures erupt enmass from the impact craters formed almost a century prior. The mechanized plague spreads across the planet devouring resources and slaughtering the Pelarian population.
In a mere matter of months the surface of Didymus is stripped clean of resources and life. The Pelarian population is decimated by this nightmarish alien threat and those that escaped into orbit, and to their moon, are last of their race.