A cocky millionaire leads an expedition deep into Lop Nur’s Black Sand Valley, hunting for legendary treasure buried in a sunken ancient ruin.
His retired soldier bodyguard warns him of something colossal moving under the dunes — but greed makes him laugh it off.
One by one, people vanish into the sand. Acidic saliva eats through steel armor. Tentacled beasts strike in the dark. And every reckless, greedy choice the tycoon makes only drags more people to their deaths.
Trapped with no signal, no rescue, and a 50-meter giant worm circling them like captive prey… only one man can fight their way out.
But not everyone deserves to be saved.
