Forza Horizon 4 is an open world racing game set in a fictionalized representation of Great Britain, featuring regions inspired by Edinburgh, the Scottish Highlands, the Lake District, and the Cotswolds. The game introduces a dynamic seasonal system where the shared game world cycles through spring, summer, autumn, and winter each week, altering road conditions, opening new routes, and changing the landscape. Players collect and drive over 750 licensed cars across a variety of races, stunts, and challenges in servers supporting up to 72 players.