Total War's new expansion pack titled; Warpath is now available to purchase off the Steam store. The expansion includes a new campaign and five new American Indian factions.
"A new detailed North American Campaign Map expands the Empire: Total War experience, with 5 brand new American Indian factions, new units and technologies. Experience battles in the new Warpath Campaign and lead one of the 5 new factions in an epic war to defend your lands and drive out the invaders. Or take these units and their unique strengths into multiplayer battles."
You can get more information here.
