The Saga of Ryzom takes place far across the universe on Atys, the living planet, where four civilizations are striving to recover after an apocalyptic tragedy. Three generations ago, the proud civilization of Atys crumbled in the Great Swarming, when hordes of insectoid Kitins swept from underground galleries and wrought war and genocide. Vast knowledge was lost in the flight.

Two rival factions who claim to watch over Atys, the Kami and the Karavan, offer their assistance to the four homin races. Members of the Karavan claim to be the messengers of the goddess Jena and use technology that is as yet unknown on Atys. The Kamis are mysterious creatures who possess great magical powers. The Fyros, Matis, Trykers and Zoraïs must choose their side.