Judas Priest : screaming for vengeance

"500 years from now, a ring of cities orbit high above the surface of a dead world, controlled by a ruling elite that maintains power through manipulation and brutality. When a naive engineer inadvertently threatens the status quo with his vital scientific discovery... A BLOODSTONE... he is betrayed by those he trusted and cast out to the broken planet below. In the wreckage and desolation of a broken world where every day is a battle for surviva...