Warhammer 40k: Dark Pursuits
You are a party of Inquisitorial acolytes in the grimdark grim darkness of the far future. You work under a full fledged member of the Inquisition rooting out heresy, destroying Xenos and generally doing the legwork for your mentor and boss as part of her many many investigations. You all come from different backgrounds, creeds, specialties, and temperaments. But you all are here to work for the good of the Imperium by any means necessary.
Simply you are in the far future of humanity, You are roughly 40,000 years in our future. Humanity has spread and waged war across the Milky Way galaxy but its golden age has passed, the time for prosperity, technological progress and utopian ideals are a distant memory. Now the universe is a grim, dark place that knows only war and decay. The Imperium of Man is the galactic empire under which the majority of humanity is united. The founder and ruler of the Imperium is the god-like Emperor, the most powerful human psychic to date. Founding the Imperium ten thousand years ago, he continues, at least nominally, to lead it.
The Imperium is beset on all sides by horrifying aliens, insurrectionists and the manipulations of all-powerful malevolent gods from the Warp, another dimension just behind the veil of real-space. Humanity has many defenders from the common human soldiers of the Imperial Gaurd, to the practically immortal genetically enhanced supersoldiers of the Adeptus Astartes, grand armada's of continent sized space vessels and the countless billions of citizens tying it all together.
An Imperial Inquisitor has ultimate authority surpassed only by the God-Emperor himself. Everything and everyone is an asset or a tool to be used to defend humanity and as acolytes you are Inquisitors in training. You still command enormous power but must build and use influence and reputation to get your way.
You will be operating in the Askellon Sector. The Askellion Sector is a region of star systems located in the benighted depths of space in the Sigmentum Obscura, between the infernal Eye of Terror and the cold, xenos-haunted Halo Stars.
There is another map showing where this is in relation to the Eye of Terror here.
Your Inquisitor has ordered you to the planet Desoleum to investigate the increasing number of illegal xenos artifacts that are appearing all over the hive cities and some disturbing deaths associated with the trade…