Crazyflight it's a lot more hands off than MS, you can adopt a new set of pets at the start of the month and then they just grow automatically throughout the month without you having to do much. They're lots of different types of pets such as Dogs, cats, rats and spiders (and SO many more, just listing a few) you can trade with other members but that's totally different from trading on MS and there's even a pound where you can get free pets when it's open. (:
