Build a blockchain game app

I am planning to build a crypto game now.
It will be similar with CryptoPop game.
You can check it here
https://play.google.com/store/apps/details?id=com.mansoon.cryptopop
Project details:
- smart contract for crypto game. (it will be deployed on ethereum network)
- integration with smart contract on react web and react native
- backend part if needed

Please make a bid if you have any experiences for this project.
Thanks.