The first expansion pack for Rome: Total War, Barbarian Invasion takes the action forward in time 349 years after the end of the original game. Beginning in 363 AD and ending in 476 AD (although the player can choose to continue beyond this point if they see fit), it depicts the great migrations of the Germanic and steppe peoples (notably the Huns) and simulates the religious tension of the time as the three religions of Christianity, Zoroastrianism and Paganism fight for dominance.