A Forza Horizon 3 Demo will be available for Xbox One owners starting next week as expected. There appears to be no sign of a Windows 10 Demo even though the game will release on PC too.
Depending on where you live will depend on when you can download the demo but is it either 11th September or 12th September due to timezones. You can download the 18.34GB demo starting at 5pm Pacific, 8pm Eastern on Monday 11th September or 1AM UK and 2AM Central Europe on Tuesday 12th September.
Forza Horizon 3 releases on the for Windows 10 PC and Xbox One on the 27th September or 23rd September if you buy the Ultimate Edition. The game supports cross-platform play as part of Microsoft’s Play Anywhere program.
Check out more information on the official listing.