https://wccftech.com/forza-horizon-5-breaks-4-5-million-players-milestone-largest-xbox-game-studios-launch-day/

Forza Horizon 5, the new iteration of Playground Games' open world racing series, is off to a fantastic start. A few hours ago, Microsoft's Head of Gaming Phil Spencer proudly boasted on Twitter that the game already broke the 4.5 million players milestone, which also marks the largest launch day yet for an Xbox Game Studios title. The concurrent player peak is reportedly three times as high as that of Forza Horizon 4, too.

We've invested for years in Xbox so more people can play. With 4.5+ million players so far across PC, cloud & console, Forza Horizon 5 shows that promise coming to life. Largest launch day for XGS game, peak concurrent 3x FH4 high. Thank you players & congrats to @WeArePlayground