The universe does not belong to humanity. Long before their existence the much older races ruled the galaxy. The Xenos races come in all manner of forms, from the ancient Necrons, beastly Orks, scheming Eldar, ever hungry Tyranids to the young, emerging race of Tau. The Imperium is beset by these races and as their power and influence grow they come to claim what is rightfully theirs or worse to enslave and feed on the helpless.