An improved LED illuminated game ball designed to be used in Bocce or Petanque. The game ball includes a solid, opaque spherical body with a threadingly connected illuminated cap assembly that is axially aligned and partially extends into the spherical body. The illuminated cap assembly includes an outer housing, and intermediate member, and a lower inner housing. Mounted on the intermediate member is a PCB with a multi-functional switch and a longitudinally aligned plunger switch. The intermediate member also includes a downward extend bridle with a downward extending LED bulb. Located inside the bridle is a plurality of stacked watch batteries. The outer housing includes top plate with a transversely aligned slot and a plunger bore through which the plunger switch and the closed neck on a sealing washer disposed under the top plate partially extends after assembly. The end of the plunger switch is recessed and enclosed in a watertight seal.