Rogue Trader: Pride and Profit
The Kroot are a predatory, often mercenary, avian breed of alien who fight with ferocity and feed on the dead. The Kroot maintain a nomadic society strangely divided between feral savagery and proficient tech-use. Their homeworld is Pech and is fully part of the Tau Empire. However many Kroot fight for others as mercenaries, which is at odds with the Greater Good and something the Kroot seek to keep from the Tau. These mercenary kindreds will fight for anyone for the right price. They are thinly spread across the galaxy and cross the voids in imposing warspheres, yet they abandon almost all of their technology to live and fight in a feral fashion once set down upon a habitable world. Most disturbingly, the Kroot eat the flesh of other species with an avid, selective hunger, and the ugly forms of their future generations take on some characteristics of the consumed. Much of their culture is driven by these unholy acts, carried out at the direction of their leaders, beasts known as Shapers. Every warsphere contains many branches of the Kroot breed, made diverse and often corrupt by their Shapers’ past choice of victims—some of which were clearly human. Marauding Kroot warspheres move across the Koronus Expanse very infrequently, though none can say from whence they came or what destination they see ahead. Some Rogue Traders have taken a handful of Kroot mercenaries into their employ where they have encountered them, but others exterminate them on sight, weary of so predacious a species gaining a foothold in the region.