For Whom the Bell Tolls
Castigation is a death world in the Basque Sector.
The moon that orbits Castigation was destroyed in a mining accident, and the planet is constantly bombarded with radioactive remnants of the moon. The population lives in vast fortress-mines beneath the surface, battling hrud infestations, mysterious gas attacks and blind, black orks.
The planet’s main exports are ore to nearby Balthazar and siege regiments to the Imperial Guard.