Uncharted 4: A Thief’s End, the latest and ostensibly last game in the Uncharted series, hit it big last month. According to the NPD group, it was the biggest selling game in a month of big-selling games.

Uncharted 4, Doom, and Overwatch all did well.

“New launches were a major driver of the growth seen in May 2106 compared to May 2015,” said the NPD Group’s Liam Callahan in a statement to GamesBeat. According to Callahan, launches last month nearly doubled the number of games sold at retail and jumped the dollar sales up by a whopping 108 percent. The games launched in May accounted for over half of the total game sales.

But it’s important to note that the NPD group only tracks retail sales, and only in the US, and while that metric is still useful in some places, it’s limited. Sony’s last brag about Uncharted had it passing 2.7 million units sold. On the other hand, Overwatch pulled in 7 million players in its first week on sale. With Uncharted winning out at U.S. retail while still being thoroughly dwarfed by Overwatch, it’s a reminder of how much digital sales and international launches matter. There’s no doubt that Uncharted, a single player game appearing on a single console, did incredibly well, but the numbers on hand are still only telling part of the story.

Regardless, May was a huge month for new games, and gamers were out in force spending money.