Pokemon gained popularity for allowing players to connect, Tamagotchi for its ability to care for digital pets and CryptoKitties for their ability to earn on the blockchain. While Pokemon and Tamagotchi shaped the lives of the 90s kids, many quickly abandoned their online creatures as they grew up and took on jobs. CryptoKitties later aimed to address the concern around earnings by building their digital kitties with unique genetic code with the ERC-721 (NFT) Protocol.
NFTs or nonfungible tokens
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