The Latest Racing game by Turn-10 Studios: Forza 5 Has sold over 1 million copies worldwide making it the best-selling racing game by console attach in the last decade. This is one of the first times we have seen sales being measured by attach rates. For those who don’t know attach rate means the percentage of a game owned per console bought in which it appears. In short Microsoft claims it is the most sold racing game because its attach rate percentage is roughly 30% making it higher than any other racing game sold this decade. Still, this is an impressive number for the franchise having sold 1 million copies making it the second game from the Xbox roster to reach this number. Congratulations to everyone at Turn-10 making another top-selling Forza game.