The 6 Great gods, worshiped by few yet powered by all.
They represent the totality of the emotions of this world, the good, the bad and the hideous. To worship them is to find yourself as the target of the greater inquisition while to become exalted to them, or better is to gain the potential to cheat death itself, allowing you to outlive the countless peoples who inhabit this world at only the cost of your soul and perhaps even your very own will to power, the very thing which got you there.
Now among the 6 gods and among the forces of chaos undivided lay many paths to power and worship, each god his (or her) own cookie to crack, with every path leading into its own direction filled with vile offenses to all of the sane nations. 
Their true names are unknown to all but a few, although the name of the god of Knowledge has been spoken by mere mortals, which was used to fracture the god into trillions of pieces and banish it from existence. Now its shards lay throughout the warp, waiting for the day when they may be reborn into a new god of its aspects. 
 
The Archmother - The Grey Maiden - The Woman In the Woods
The goddess of Plague.
Fertility, Nature, Ambition and of Manipulation
This goddess, the only overtly female among the dark deities is the patron of the forest and other natural regions, woe to those "civilized" which are caught under her gaze for no matter how long they thrive and survive eventually they will return to the soil and their great wonders will become overgrown and eventually consumed by her grassy tendrils and roots.
She is also the goddess most closely associated with common evils of women, of that of the breaking of trust and of taking advantage of the romantic and sexual desires of men. Those wives of criminals, those willing slaves to darkness and those breakers of innocence. Those vile women often find themselves unwitting or even willing slaves to the goddess of plague, forming disgusting cults to nature in their friend groups. Initially many of these cults find themselves seen as patrons of the beauty of nature and of preserving it for future generations, but eventually these subversive cults show their true colors as either the women of these groups go about fulfilling their goals to quickly or their diseases become apparent and they are targeted by the Great Inquisition for extermination. 
 
The Wanderer - The Final Truth Sayer - The One at the End
The god of Knowledge.
Death, Isolation, Magic and Desolation. 
 
The Great Wolf of War - The Bloody Mechanist, The Perfect Destroyer
The god of War.
Industry, Perfection, Blood and Destruction.
The dawn of the blood moon comes, and the Great Wolf of War answers its call, his machines and legions ever standing ready for the most efficient blood bath they can manage. This god is patron to mechanics, for he loves machines which are both complex and efficient. Yet above all he loves efficiency, to him the look of his troops could mean less for whatever takes the most souls is what he finds the most lovely, his cults spring often from those who are either interested in war or in machines, they ask for his guidance when they craft which can help to propel them above their peers due to the efficiency of their creations. But eventually they start making more and more complex devices, devices for making devices and ones which create the latter, this leads them towards dark mechanics. Things such as soul powered machinery or life draining equipment designed to funnel all available power towards a device which is as adept at killing as possible even if that means destroying the user as well. They will craft death dealing tools with incredible precision and grace at speeds faster than the inferior equipment of their rivals and lawmakers. And if they cannot persuade society to adopt their uncaring ideology they will instead turn to conquering them instead, turning their unholy machines against former colleagues and government alike or attempting to flee to unknown regions in order to try to create something there. But this usually does not work out as they fall to infighting or perish to their now automated tools of death which then try to journey to civilized regions in order to kill, these usually also fail due to measures which have been set up by the Great Inquisition.
 
The Glutton, The Maggot, The Delusion of Mists
The god of Excess.
Pain, Pleasure, Parasites and Madness.
 
The Highest King, The Patron of Masters, The Patron of Light
The god of Order.
Slavery, Patriotism, Purity and Uniformity. 
Why does the soldier fight and the peasant toil? He does so for hope of a better life, if not for himself than for his children. He prays for salvation from the fires of this world, its terrible curses and its profane denizens. Many among the older generations shake their fists at the newer, whose ways run more divergent than their own, so to will the peasant shake his fist at his grandchildren, who to will diverge from his own apparently pure path. The Highest King promises exactly what these people desire, the chance to work for that better tomorrow. Yet this God is no true God of Goodness; he is not the ideal he promises himself to be, as the ideal for the many races is different, everybody has their own specific tradition and thus this god represents that contradiction, he fulfills it through brutal perfection of form and values of the utmost archaean nature.
His realm is a shining city, although only its lower and underground regions are occupied actively
 
 
He of Not - The Greater Least - The Master of Not 
The god of Anarchy.
Freedom, Self-Determination, Change and Treachery