The Nomadic Tribes Culture Pack includes three brand new factions: the Massagetae, the Roxolani and the Scythians.
The Massagetae are a fierce nomad tribe with a long history of destroying civilized armies, as their utter crushing of Cyrus the Great and his Persian army attests. From their steppe homeland, they have the power to sweep down on nomad and settled enemies alike, taking what they will and moving swiftly on to new victories and new conquests. By using their strengths as horsemen, there is little they cannot achieve.
The Roxolani or 'Bright Alans' are a Scythian-speaking collection of tribes of the Sarmatian people. As might be expected of steppe nomads they are fine horsemen, ruthless warriors, and merciless towards their enemies. Like all steppe nomads, there are many forces drawing them south and east away from the steppes: the prospect of easy pickings from soft and sedentary civilized people is foremost among these reasons.
In their own eyes, the Royal Scythians are better than everyone else. This is not their problem, but a simple truth. All other tribes, even other Scythians, are no better than slaves and deserving of the same level of consideration, which is to say absolutely none: such is the fierceness of their pride.