Crullus Prime was a planet within or near the border of the Ferengi Alliance, and homeworld to the Crullers.

Famed Ferengi explorer and entrepreneur Milch convinced the Crullers to sell him their entire population of females for a fruit basket. When the Crullers realized they had been cheated, they executed Milch by burning him to death at the top of the Stairs of Gilfoyle, on the Stone of Deaver. In years that followed, Crullus Prime became a pilgrimage destination for Milch's admirers. (DS9 reference: Legends of the Ferengi)