Polyphony Digital Inc. is an internal Japanese first-party video game development studio for PlayStation Studios. Originally a development group within Sony Computer Entertainment's Japan Studio known as Polys Entertainment, after the success of Gran Turismo in Japan, they were granted greater autonomy, reestablished as an individual company and renamed themselves Polyphony Digital. It currently has four studios: two studios in Japan, one studio in the Netherlands, and another one in the United States.