In games like World of Warcraft and Fortnite, the studios treat their games as a 'walled garden.' Meaning that nothing outside the game can exist inside, and vice versa. So whatever items you obtain in-game are only usable in that game. With its incorporation of non-fungible tokens (NFTs), blockchain gaming provides users with a solution to that problem.
Enter the metaverse — a decentralized, open-source ecosystem where items and information can be used interchangeably throughout games and servers connected to the same blockchain https://coincodex.com/article/13219/what-is-the-blockchain-game-alliance-and-why-will-it-make-headlines-in-2022/
