Forza Horizon 3 is a racing video game set in an open world environment based in Australia, with the map said to be twice the size of the map in Forza Horizon 2, ranging from Surfers Paradise to Byron Bay, even to the Australian Outback. The game features a four-player co-operative multiplayer campaign. The game features cross-platform play, as it is a part of the Xbox Play Anywhere program. A total of 350 cars are available to players at launch – the most amount of cars to be featured in a Horizon game.
While previous Horizon games have depicted the player as one of the racers of the Horizon Festival, the player is now the director of the Festival, and their role is to make it the biggest festival in the world. As director, the player can hire or fire racers as well as organize and make custom race tracks around the map.