A month after its release, the game took 15% of the traffic of the Ethereum network and significantly rebooted it. CryptoKitties immediately went viral: users spent tens of millions of dollars on it. They differ from ordinary tokens in that each of them is unique, inimitable, and indivisible - one NFT cannot be replaced by another or divided into parts. And here there is a cooldown characteristic that affects the value of each individual:ĬryptoKitties was the first game to use the principle of Non-Fungible Tokens (NFTs), using the ERC-721 protocol standard. Still, a certain amount of time must pass between “siring” - the pause (cooldown) lasts longer with each generation. After your CryptoKitty has given birth, you can breed your CryptoKitties together again. The gestation period of CryptoKitties lasts in different ways. Also, keep in mind that some genetic combinations can create mutations. New-born Kitties inherit the traits of their parents but note that some genes are recessive. After breeding a female and a male, the game’s KittyOwnership smart contract will create a new CryptoKitty. The player must either buy two Kitties or have one and rent the other to breed. How to Play CryptoKittiesĬryptoKitties exist of two sexes, male and female, dame and sire. Naturally, Kitties of early generations usually cost more because of the “rarity” and because they typically have shorter intervals between mating (more on this later). Each CryptoKitty is unique and can exist in the blockchain only in a single copy. Each of them has a set of unique characteristics, such as the color and shape of the eyes, mouth, pattern, color of the coat, and even purring. The beginning of the gameplay was laid by a hundred Founder Kitties. The essence of the game is the breeding and sale of Kitties. CryptoKitties is a blockchain-based game launched in November 2017 by Dapper Labs.

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