Humans

These will be standard from the PHB.

Humans in the Dark Sun world are about as you'd expect. More bronze-toned and darker-haired due to the burnt climate of Athas, humans are numerous, but are focused primarily in the city-states around the greater Tyr region of Athas. They lack the constitution of the dwarves and the sinuous body type that keeps the elves cool and running on the dunes, so their physiology tends to keep them to the more urban environments. That being said, though, caravans of human merchants, lines of human ships, and bands of reclusive human nomad-clans are out on the wastes as well, they just may not be as numerous as the dwarves, elves, the kreen, and the other more physiologically competitive races.

Humans also span the gamut of privilege on Athas; they are just as likely to be a slave or a slaver, a noble or a kank herder, the templar of a sorcerer-king - or the sorcerer-king himself.