Calcarata (5E)

From publisher blurb: The Desolation of Dreams In the badlands of Calcarata, a long-lost offshoot of humanity has turned dream into science in an endless dance, but drug wars flourish between the lonely waypoint stations while the psychic screams of the dream-devoured echo through the endless canyons. New feats, spells, and gear to help you survive this waking wasteland, along with a detailed planetary gazetteer, adventure hooks, the psychic penthe playable PC race, and a brand-new monster, the deadly havriveen dream-dragon!