CryptoKitties is the first game based on the Ethereum network, released in November 2017. Its goal is to breed new CryptoKitties, which get some traits of the parents and some randomized traits. There are over 100000 owners of CryptoKitties. There are over 2 million CryptoKitties in existence, with new ones getting bred every day. They also have their own trading platform and auction system. It was created by Dapper Labs, known in the NFT space for several projects, including NBA TopShots.