Sandbox is the third largest metaverse based on the Ethereum blockchain. It allows users to create, share and monetize their assets (such as real estate) and gaming experiences (avatars, videos, graphics, levels, etc). People can own, play, build and own property and in-game assets in virtual worlds. Also, they can sell such virtual assets and in return earn money in the virtual and real world. With blockchain, Sandbox leverages the potential of non-fungible tokens (NFTs) so that people can experience the virtual world. NFTs provide users with qualities such as scarcity, security and authenticity.