A dark world far from the light of Tythos, Zerist was illuminated by the reflected light of Obri. Most settlements on the volcanic moon were near the bases of these mountains, where the settlers funneled heat into their homes. The volatile nature of the world gave rise to government systems to guide the evacuation of areas threatened by eruption and the prediction of such cataclysms.
Beneath the surface of the moon were vast underground seas illuminated by bioluminescent minerals in vaulted caverns. The wealthiest settlers of Zerist established their homes on islands within these warm subterranean depths, wherein many mining facilities established their headquarters and executive offices.
In the year preceding the invasion of the Tython system by the Infinite Empire, Je'daii Rangers Hawk Ryo and Lanoree Brock helped to negotiate a marriage between Brom Santis and Oma Dessain to end violence between the two wealthy mining families.