Blackrock

A burnt, ebony planetoid orbiting too close to its parent star, Blackrock is nonetheless contested for its mineral wealth. The massive macro-excavators of the Gneissguild toil for Baron Gonsalvus, a brute more beast than man, but the guilders have to fight for every ton of ore against the Kaluta, humanoids who hold Blackrock sacred. These beings are led by the Llian, warriors apparently immune to heat, radiation, and conventional weapons.

The conflict is complicated by the presence of the petrogs, monstrous carnivores with a black, oily sheen; it is assumed they were transplanted here from elsewhere or engineered to survive the brutal conditions. The creatures seem to have a connection with the Slag Walker, a mechanoid only seen stalking the day side of Blackrock, its deformed metal plates glowing red hot.