There are many parts in this service.
Lottery, betting, gambling, poker, shooting, fighting etc.
The consist parts of my game project for "Play To Earn" contained smart contract development, NFT , NFT marketplace, cashshop, ICO website , Game App etc.
These service contains a large scale and based on fullstack.
such as solidity, React, web3, webGL, Unity, database, backend programming skill, Etheruem/BSC/Polygon/Aalanche, Unity etc