Original sentence: This design has not been made yet, the only place where this occurs is in RollerCoaster Tycoon 3, although there is one operating Tilt Coaster in the world, Gravity Max
Edited sentence: Although there is one operating Tilt Coaster in the world, Gravity Max.Sadly this design has not been made yet, the only place where this occurs is in RollerCoaster Tycoon 3