NFTs are a form of blockchain technology, where an object is identified with a digital fingerprint. That fingerprint is used to determine its authenticity and value, and so every NFT is different from the next. This can be useful for tracking items securely—without the worry that barcodes or RFIDs could be copied or cloned. In games, NFTs are useful because they allow players to keep track of an object's history—where it came from, who owned it, what modifications were made to it, etc. But outside of games, NFTs provide a high level of trust in the authenticity of an object's origin. https://www.youtube.com/watch?v=idvfJ7je6jE