hi Im Ahsan Im a game developer I usually use unity and Im not much into crypto, NFT, Onchain things and wanted to ask some questions:

is it neccessary to implement $BARIO tokens to be eligible for prize?

is there a theme?

how can we incorporate $BARIO tokens into unity is there a SDK

how does $BARIO thing works? is it like in app purchases but with crypto currency?

Hello! 
No, it is not necessary to implement onchain features. 

Please visit https://portal.thirdweb.com/unity/v5 for more information about blockchain <> Unity.