Capcom Co., Ltd. (Capcom) today announced that Monster Hunter: World has shipped over 10 million units* worldwide following the release of the PC version on Steam and in combination with the home console versions of the title.
Monster Hunter: World, the best-selling title in company history, achieved this 10 million-unit milestone following the titles' PC release on the globally accessible Steam platform, allowing the game to appeal to a wider fan base spread across a greater number of regions, and in combination with continued robust sales of the home console version of the game even now, more than six months after its release.
http://www.capcom.co.jp/ir/english/news/html/e180820.html
Fantastic news and gratz to Capcom. It's a stellar game.