Polyphony Digital is a Japanese video game development company known for creating the popular racing game series, Gran Turismo. Founded in 1998 by Kazunori Yamauchi, the company focuses on delivering realistic driving experiences through advanced graphics and physics. The Gran Turismo series has gained acclaim for its attention to detail, featuring a wide range of licensed cars and real-world tracks. Over the years, Polyphony Digital has contributed to the evolution of racing games, setting industry standards for realism and gameplay mechanics.