First week sales of Uncharted 4 are crazy and surpass 2.7 million copies. Officially, Uncharted 4 is the fastest-selling PS4 first party title to-date in the North American region. At their blog, Sony has reported a huge financial success of Uncharted 4: A Thief's End. Data shared by the company includes worldwide sales for both Blu-ray Disc and digital sales as of May 16, 2016. Here's the official news page.