This game is also a trading platform. The goal of this kitty game was to give newbies an experience of how cryptocurrencies work, in this case Ethereum. But in the end, it has become one of the most profitable businesses. The platform runs through the website and we must have the Metamask plugin. Cryptokitties are virtual kittens with different traits (each one has its own value), the rarest traits are the ones they want the most and are therefore the most tradable at the best price with Cryptokitties. All properties are stored in the Ethereum blockchain in an exclusive token, therefore, each Cryptokitties token will have a unique valuation. Cryptokitties would become ERC-721 tokens.
Overall, it is one of the most profitable games today, but it could be forgotten in this fast-paced world of crypto. However, it has an excellent design and for many users it is still an addictive playable icon with adorable kittens.