Other then the DNA and tournaments they run that make it almost impossible to succeed in (without spending a ton of cash) The game is tons of fun. I love evolving my dinosaurs to all the way to level 40. Making hybrids is fun as well, as long as you dont mind the expense of doing so, but its been a challenge so far, and I still have a long way to go (indominus rex, 29,400 DNA, need 7 more to make a level 40 ><)
Anthony Moyer about Jurassic World™: The Game, v1.8.32