この1位ってPUBGじゃないの？？
https://images.ctfassets.net/vfkpgemp7ek3/1959165998/90e2526845f62148843a098b687a9bd3/top-mobile-games-by-worldwide-revenue-jan-dec-2021.jpg
https://sensortower.com/blog/billion-dollar-mobile-games-2021