CryptoKitties are digital pets and collectibles there is live in ethereum blockchain very cute and beautiful.every kitties is unique because all are ERC-721 token with different kind of DNA.
Koto Wars
Koto Wars is a Cryptokitties card game. This game made by fans of CryptoKitties. if you don't have any non-spacial kitty you can buy any non-spacial kitty in-game market because only non-special kitties are allowed in this game.