I don't know if it counts as owning, but it did make me feel like I was a pro, so whatever.
I started the Malta Expansion Arizona campaign, the one with very little building space and plenty of wild dinosaurs, on jurassic difficulty, of course.
Obviously, the lack of starting funds was a problem. I had to hire scientists, refuel the generator, build basic facilities. I had to start making money quickly, so I took a trip to the desert and tranqued a herd of Gallimimuses. From there on it was only getting easier.
The initial trickle of cash, I've managed to upgrade tranq darts, and build a new enclosure. Caught a pair of Metriacanthosauruses and a pack of Coelophysis. Then it got very simple, and I could finally make my own dinosaurs in addition to the captured ones.
There was a period of stagnation when the oldest dinos started dying out. I was sending expeditions FURIOUSLY to keep the ratings from dropping, and fortunately I managed to keep up both time-wise and financially.
In the end I had six enclosures
1. Gallimimus, Amargasaurus, Sauropelta
2. Pachycephalosaurus, Wuerhosaurus, Lystrosaurus
3. Carnotaurus, Coelophysis
4. Baryonyx, Suchomimus, Moros
5. Torosaurus, Chasmosaurus, Euoplocephalus, Struthiomimus
6. Tyrannosaurus
There was no major escapes. A Moros once got out when I was replacing the fencing, but it ran back in before the new fence was completed, so I didn't even have to tranquilize it.
The second the T-rex touched the ground, the rating reached 5 stars. I was just a little over the par time, but who cares about that.
Jurassic World Evolution 2