Now, CryptoKitties can also be used throughout the growing landscape of Ethereum-based games, including on platforms like Decentraland, KotoWars, and Heaven.cat. Smart contract technology and provably rare digital assets in the form of NFTs have helped grow Ethereum gaming into one of the most exciting sectors in blockchain, as evidenced by platforms like Nifty Gateway, OpenSea, Rarible, and NBA Top Shot. Every CryptoKitty is a unique NFT, coded to ERC-721 token standards, and has a set of “genes” that determine its appearance, which can be passed onto offspring by “breeding” CryptoKitties with one another.Īt its peak in 2017, CryptoKitties attracted more than 14,000 active users daily and propelled Ethereum technology to the forefront of the gaming industry for the first time. CryptoKitties was designed to introduce new users to blockchain technology in an accessible and gamified way akin to card-based trading games like baseball cards or Magic: The Gathering. Launched in 2017 by Axiom Zen, CryptoKitties is an Ethereum-based game that allows you to buy, sell, and breed collectible digital cats, and was an early and highly publicized example of non-fungible token (NFT) technology in action.

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