Hello,
Hope you are doing well.
I have gone through the project you just posted with name of - Android game APK build and firewall security with required skills of Android, Game Development, Java, Mobile App Development, Software Architecture
As per my understanding I have understood the project and I can complete it for sure.
I guess I have developed something similar in my past and I can show you.
But before going forward I would like to discuss few things with you on chat and I hope that is fine with you. I am waiting for your ping on chat.