The whole thing looks suspicious to me - there are no images of the game, broken English everywhere, tons of contributors but only one open issue. The repo is just odd in a lot of ways and is sending out bad vibes.
Also, the Android instructions make no sense, since there’s no APK in the releases. Unless they somehow bundle that in the source code or Linux zip.
If it’s broken then why no issue being tracked? Is there any issue tracking at all or is it genuinely all through Discord?
I would really recommend using GitHub’s features whenever possible, especially for important information like the status of the Android build. Very few people are keen to join a Discord group to find the status of your code or instructions