https://www.gamespot.com/articles/top-20-best-selling-games-in-the-us-for-october-20/1100-6455033/

Following Nintendo's initial report, The NPD Group has now released its full report for October 2017 US sales, covering games and hardware. Starting with games, Middle-earth: Shadow of War was No. 1 for the month, with Assassin's Creed: Origins, Super Mario Odyssey, South Park: The Fractured But Whole, and NBA 2K18 rounding out the top five. You can see a list of the top 20 best sellers below.

Shadow of War sales were 20 percent better than the launch month of Shadow of Mordor back in 2014, the NPD Group noted. Additionally Odyssey had the third-highest launch month for a mainline Mario game since NPD tracking began, only behind New Super Mario Bros. Wii and Super Mario Galaxy. Specific unit sales for Shadow of War--and all other games--are now shared in these NPD Group reports. If they are released at all, specific unit sales figures would more likely come directly from publishers.