Polyphony Digital

History

Kazunori Yamauchi joined Sony in 1992 as a programmer and was transferred to Sony Computer Entertainment in 1994. His ambition was to make a racing game unlike anything available at the time — not an arcade racer, but a simulation that captured the feel of actual machines on actual circuits. Sony's management was initially sceptical. Yamauchi's strategy was to embed his philosophy inside a more palatable concept: Motor Toon Grand Prix (1994), a colourful kart-style game for the original PlayStation, served partly as a vehicle to demonstrate the technical foundations he was building and to secure continued backing for the larger project he had in mind.

Working under the internal label Polys Entertainment, the team spent approximately five years building what would become Gran Turismo. The development was unusually long by the standards of the PlayStation era. Yamauchi wanted the game to model the physical behaviour of real cars with fidelity that no console racing game had attempted. He sourced data on actual vehicles, studied the physics of weight transfer and tyre friction, and insisted that every car in the game feel distinct from every other. The result was a racing simulation with a car selection that included both everyday road cars and racing machinery — an approach that no competitor had taken.

Gran Turismo launched in Japan in December 1997 and reached North America and Europe in 1998. The game became the best-selling title on the original PlayStation, with 10.85 million copies shipped globally. The phrase 'The Real Driving Simulator' — coined as a tagline — described not a marketing aspiration but a design specification Yamauchi had held to throughout development. The success of the title prompted Sony Computer Entertainment to separate the team from its internal structure; Polyphony Digital Inc. was formally incorporated on April 2, 1998.

Gran Turismo 2, released in 1999 and the first title developed under the Polyphony Digital name, expanded the formula substantially. The car roster grew to approximately 650 vehicles — a selection that required licensing agreements with manufacturers around the world and involved Yamauchi personally negotiating access to production data. Gran Turismo 2 shipped 9.37 million copies, confirming that the original game's commercial performance was not an anomaly and establishing the series as one of Sony's most important franchises.

Polyphony Digital's subsequent output continued under Yamauchi's direction. Gran Turismo 3: A-Spec (2001) was developed for PlayStation 2; Gran Turismo 4 (2004) expanded to over 700 cars and introduced a more structured driving licence system. Gran Turismo 5 (2010) and Gran Turismo 6 (2013) arrived on PlayStation 3. Gran Turismo Sport (2017) introduced online competitive racing as the central mode. Gran Turismo 7 (2022) returned to single-player depth while retaining the online component. Throughout this run, Yamauchi remained the creative director and chief spokesperson for the series, one of the few figures in games who has maintained authorial control over a major franchise for more than three decades.