There are a few great Chinese single player games out there like amazing cultivation simulator, but they are all indie games. The Chinese government restricted how Steam works in China so I have no idea how indie Chinese games are getting out there, if at all.
https://www.pcgamer.com/steam-china-launch/
I played a little Genshin after it first released but was put off by the underage characters being portrayed sexually. The sad fact of the matter is that its a great game made with passion, and many Chinese games have a """lolicon""" issue. I tried the game Mahjong soul after getting into Mahjong from Final Fantasy, and it has the same issue.
And when I say """lolicon"", I mean kids as young as 11-13, maybe even younger. it's disgusting. Otakus seems to run the industry there as far as I can tell, or at least what makes it to the west because to know real stuff about Chinese culture you have to be at least kinda a weeb for Chinese stuff. I got into Xianxia from my love of manga which lead to Manhua. The Xianxia scene has a lot of problems but """lolicon""" hasn't been one of them.
TL;DR The chinese video game industry is run by otakus, at least for whats made it into the west. The worst part is that HoYoVerse WAS an indie developer whose motto was "by otakus, for otakus" they aren't hiding what they are about, but unfortunately have become #1 for pandering to the lowest possible denominator