Hi there!
As you know, translating a game like Pathologic is not an easy task — it surpasses some novels in the word count.
While officially the game is only available in Russian and English, we'd like to recommend a Simplified Chinese fan translation by kevinw:
https://steamcommunity.com/sharedfiles/filedetails/?id=2012613136
Please note that this mod only translates the in-game dialogues, leaving the user interface in English.