Feral Worlds, like their Feudal counterparts, will have little direct political or economic interference from the Imperium and will pay only the lowest grades of planetary tithes, their tithe grade given as Solutio Tertius. Feral World populations may be aware of the Imperium's existence in some fashion but are unlikely to know much more than something about a large group of distant people living among the stars. These planets are frequently unsuitable for later Imperial colonisation, either due to the circumstances which drove the natives feral or because the natives themselves actively resist new people settling on their lands. The people of Feral Worlds can range widely in culture, from Grox-hunting Stone Age tribes of ancestor worshippers who only recognize the Emperor of Mankind in th