This is similar to a previous project that you bidded on in the past. Basically, it involves figuring out the TCP protocol that the Android and iOS game uses to communicate with the central server.
A website that explores this is the following:
[url removed, login to view]
Perhaps, you've already figured it out in the previous project and you can share the findings with me (for a cost). I'd like to hire you if you have experience in this area.
I would like to know how the other part is encrypted and a way to decrypt it. I believe the encryption is done using the nonce value and a private key that is negotiated in the initial SSL connect (but I'm not sure).
It is easy to capture packets. Basically download BlueStacks and install this game, and start capturing packets.
Let me know.