IntroductionNon-Fungible Tokens (NFTs) have taken a significant position in the development of blockchain technology, especially in the gaming industry where the application of NFTs has been widely accepted. However, traditional NFT standards, such as ERC-721, while ensuring the uniqueness and irreplaceability of each token, fall short in supporting complex game logic and rich user experiences. This is mainly because the design intention of the ERC-721 standard was to ensure the uniqueness an...