Ember: Fire and Wind
While deserts normally pose difficulties in survival, the Deadlands are far more dangerous. Freezing shadowsand and life-sucking black sand are only a few of the supernatural dangers. No winds blow, campfires barely burn, and sand dunes somehow cross the landscape of their own volition. Undead (and worse) roam the area, looking for lost travelers.
The Deadlands are dotted with ruins of abandoned cities and forgotten strongholds. It is widely rumored that the ruins hold vast treasures.