The abandoned orbital military laboratories of Cestis IV are home to a accidentally released form of security synths, which now roam the stations. Their high capacity batteries allow them to operate almost for 50-70 years, until they put themselves in hibernation to preserve energy. The predominantly female synthetics are not only the most deadly artificial lifeforms. but now they prey mercilessly on unwitting illegal salvagers trying to make a quick profit of the derelict technology.