NFTs can effectively serve as a "task result credential" system in Web3 games. By minting unique, blockchain-based tokens, game developers can record players’ achievements, such as completed quests, earned rewards, or milestones, immutably on the blockchain. Each NFT acts as a verifiable proof of accomplishment, ensuring transparency and authenticity. Players own these credentials, enabling them to trade, showcase, or utilize them across compatible platforms, enhancing interoperability. This system incentivizes engagement, as NFTs can carry in-game value or real-world utility. Additionally, smart contracts can automate issuance and validation, reducing reliance on centralized servers. However, high minting costs and scalability issues may pose challenges, requiring optimized blockchain solutions like layer-2 networks. Integrating NFTs as task credentials fosters trust, ownership, and a decentralized gaming ecosystem.