Forza Horizon 3 isn't set for release for a couple more weeks, but Forza fanatics don't have to wait that long to enjoy the game. As per tradition, a new Horizon game's demo is out two weeks before full game. Now, you get a taste for what the Horizon Festival has to offer throughout Australia. The demo takes up about 19 GB of space - so be sure to clear some room before trying to download it. The full game of Forza Horizon 3 will be available on both the Xbox One and PC as part of the Play Anywhere program on September 27.