Standardization
Blockchain is a unified representation of digital assets in the digital world. Using blockchain, a developer can build common reusable standards, relevant to all non-fungible tokens.
Tradability
Having the blockchain system allows NFTs to be traded freely on open markets. Game developers no longer have to worry about replication or payment.
Creating Scarcity
Smart contracts can be coded to put a limit on the supply of NFTs and ensure that some properties cannot be modified after NFTs are issued.