Did you copy the "game" folder that you unzipped to Android/data/com.domain.corruptedkingdoms/files? You need to keep the folder structure the same or it won't work (Ren'py is very picky about where it reads files from).
I completely deleted the comment before because good news, turned out my phone was too dumb too extract zip files correctly so I just installed an app for it and it's working yay! I spent too much time on it lol. :)
