A mining world close to the system's star, whose fragile ecosystem is under threat from the expansive mining operations on its surface.

This former Hive World in the Taggania System lies directly in the path of the T'au expansion and has thus been redesignated a Fortress World. Its hive cities have been extensively fortified, and the land between them is now covered in trenches and fieldwork. 

In the past few years, the planet's Astra Militarum regiments, the Camundan Roughnecks, have been deployed to slow down the xenos advance, and have made a name for themselves as masters of close-quarters combat and attritional warfare. They are known to utilise large numbers of shotguns, flamers, and melta weapons, as well as an unusually high proportion of carapace armour-clad troopers.

An unusually large rocky world devoted entirely to the production of food for local star systems.

A small, mineral-rich world whose atmosphere is toxic to human life. Hundreds of thousands of prisoners, shipped from across the sector, toil in awful conditions to extract the numerous heavy metals and minerals required to keep the fires of industry burning. Life expectancy for those sentenced to hard labour here is measured in weeks and months, with some particularly dangerous seams having a survival rate more akin to active warzones. 

A former mining world stripped bare to serve the needs of the Imperium - its surface is littered with the carcasses of mining equipment and abandoned settlements. A thick pall of toxic smog lies across most of the planet's surface, a reminder of the world's past. 

Rumours of activity have been circulating amongst the population of the system's inner planets. These have all been dismissed by the authorities, though the more watchful have noticed an unusual number of Inquisitorial agents in the system since the rumours began...