Final Fantasy XV was a sales success for Square Enix. They managed to recoup the development costs with the day one sales and shipped 5 million units day one. This was followed up be an update announcing that the game has shipped 6 million units at digital and retail, making it the fastest selling game in the series.
Recently Hajima Tabata shared a sales update on the game in an interview with GameSpot. This sales update was shared after around 8 months of the last update so it seems like the game has managed to sell even more copies since it launched back in November 2016.
“From a business standpoint, we’ve achieved over 6.5 million units, and the fact that we’re still going to be putting out content till the launch of the Windows Edition–and then we have the Pocket Edition–this project has been very successful for us.”
Final Fantasy XV had a troubled development cycle as the game was originally announced as a spin-off to Final Fantasy XIII but later changed to a mainline game. It took 10 years from the initial announcement to the release of the game but it was also rebooted and the development started from scratch once they focus shifted to next generation consoles in 2012. Currently Square Enix is planning to release a Windows Edition version of the game along with a Pocket Version that contains the complete story of Final Fantasy XV playable on Smartphones.