FCS is a blockchain game value chain created based on blockchain technology, making it a value connector in the gaming world. Based on the independently developed POI+VRF+DPOS consensus mechanism, AES+ECC hybrid encryption algorithm, it is convenient for asset ownership, circulation, settlement, and development. Through a decentralized account management system, settlement interface, and decentralized database, it achieves one click login across games, and connects digital property ownership access and transactions. Through the digital assets of ownership confirmation, value circulation can be achieved between different games, while permanently preserving the digital assets of game players. At the same time, a complete blockchain game technology facility is provided for game developers, allowing them to quickly and efficiently complete blockchain game development without considering the underlying implementation of blockchain technology....