Microsoft has removed Forza Motorsport 5 from the Xbox Store meaning it can no longer be purchased digitally through it. The game’s removal is likely due to licenses expiring. A little while ago Microsoft had made the game a part of the Games With Gold promotion allowing Gold subscribers to download it at no extra cost. For those that have the game in their digital libraries it will still be available to download. Obviously physical copies are unaffected too.
It isn’t the first time Microsoft have taken this kind of action with the series. Forza Horizon was removed from digital sale in 2016, with that game also being offered on the Games With Gold promotion shortly before its departure.