Unity 3 D Game - Crypto integration

I have my own Unity 3D game and I have my NFTs , Token. I would like to integrate them together and use the metamask wallet .
Unity Game is TPS ( third Person Shooter) ( PC - Androids )
All crypto details are in the website Dexbattle.com
Work Would be on team viewer or anydesk

Game is ready TPS game

Game has Silver coin - Gold Coin - Characters & weapons

Silver coins , guys can earn it from the game itself

Gold coin ( Crypto Token , Already exists- Should be integrated-)

Characters & Weapons are NFTs - Should be integrated -

*** NFTs at in game shop , is sold by Gold coin ( Crypto token)

** Gold coin (Crypto) can be bought by silver coin

Kindly note that Budget for this project is limited as per project . if your price is exceeding this budget , kindly do not bid for this project .

Thanks for understanding ,

Regards.