Companion animals play an important role in society. So we have decided to give them the attention they deserve because of the influence they exert on people, which goes from the problems generated for living with pets, up to benefits they provide at the individual and social level. Kittens&Puppies is an universe inspired by real life, where anyone can earn tokens through the playability and contribute the ecosystem of the pets. Players will be able to play, raise and reproduce their NFT pets. Our goal is to develop the game in several phases, inclined to create the best combination of a dynamic game, where each player can choose which pet they prefer and with which of them will generate higher benefits long-term, it is also designed with one of the newest blockchain technologies: NFTs, bearing in mind the gaming experience of the players and the play-to- earn mechanism are our top priorities. Initially mobile devices are our main objective, but in the medium term it will be implement playing on the web, this way each player can play Kittens&Puppies in any place and at any time, always with the cellphone connected to the internet.