If you know about Cryptokitties, you might wonder what it has done for Ethereum. Because yes, as much as it is “just a game”, Cryptokitties was the introduction of a new concept called non-fungible tokens: tokens that are different from one another and that can be traded for different prices. After the success of Cryptokitties, a number of non-fungible tokens contracts followed with the same recipe: cryptocelebrities, ethermon, … The idea became so popular that it started to make sense ...
