Dark Sun is a Dungeons & Dragons campaign setting featuring the fictional desert world of Athas. The original Dark Sun Boxed Set campaign setting was released in 1991. The themes of this setting could fit in the Dying Earth subgenre and include survival against the elements, ecological disaster, resource depletion, survival of the fittest, slavery and poverty, and the widespread use of psionic abilities. The political setting is similar to ancient Middle East, North Africa or Mesopotamia.