Imperium: Legends is a standalone game that contains the three most challenging civilizations in Imperium: the Arthurians, Utopians, and Atlantians, as well as the Egyptians, Mauryan, Minoan, Olmec, and Qin civilizations, each of which can be played against solo. It is fully compatible with Imperium: Classics for players wanting to expand their pool of civilizations even further.