itch.io

That's not the case. Even if Chinese users browse Steam through VPN, they won't be able to find the games you've listed. Most Chinese people typically use WeChat and Alipay for payments, rarely using bank cards. Of course, if you're looking for someone to translate Chinese, I'd be interested in joining.

Chinese people don't need to use VPN to buy games, because Steam is already open to Chinese people. Chinese people just can't buy games that are not developed for China, even if they use VPN.