humans lost to times. a colony abandoned. many using swords an shields with no tech, many tribes using scrap metals. hidden enclaves of tech users. planet said to dangerous. having 
 many layers under the ground an crust of the world. ultrafauna an mega fauna roam these huge undergrounds ecosystems. light from lava glows these haves. some being all dark. some having glowing creatures. many wingless dragon creatures that come to the surface to eat many humans. Humans with DNA Changed live in the 