Ethereum based games like Cryptokitties have found footing in the Bitcoin mania. The real craze today is breeding crypto collectibles like Cryptokitties, Cryptoathletes, Cryptodoggies. You can buy, sell, and breed these avatars. The cutting-edge Cryptokitties clones of Appdupe will allow the customization of avatars, as per your requirements. In addition, there is a master contract on the Ethreum Blockchain to tie together the whole process.