CryptoKitties

CryptoKitties is a blockchain based game in which users collect and trade digitally scarce virtual cats using ETH tokens. Each kitty has unique 256-bit genome which defines it's appearance and traits. Players are able to breed new kitty who inherit traits from their parents genome. AxiomZen developed the game including the five smart contracts which allow users to interact with the Ethereum blockchain. The blockchain tracking of the CryptoKitties means that the kitties are permanently and immutable available on the blockchain regardless of the original creators continued support of the project. CryptoKitties is a new type of digital asset known as a cryptocollectablescryptocollectables, other examples include CryptoPets, CryptoPuppies.