Utilizing blockchain, metaverse, and PlayDapp's core NFT Protocal Utilization technology, PlayDapp aims to offer interoperability to facilitate users’ data across various blockchain-based platforms such as games, metaverses, virtual theme parks, and financial services. This interoperability is at the heart of PlayDapp's identity. Empowered by the PlayDapp SDK, developers are able to transform apps to DApps and "NFT-fy" items to gain interoperability between different games, metaverses, and even the offline sphere. PlayDapp has been providing decentralized services using the Polygon network and Chainlink, with its NFT C2C Marketplace as No.1 on Polygon for over 2 years running without any hitches, having opened and live since May of 2020. With PlayDapp's key technology of NFT Protocol Utilization, we are one step closer to realizing true ownership of digital assets for everybody.