I have to give credit to player Chaos Mythology for Co-writing this guide. If you have any questions or are not clear with something post below before leaving negative feedback.
************This Achievement can be done on the newer islands. Isla Matancerros is probably the best one to try this. My Guide is made for Isla Nublar which was the only island available on challenge mode at the time this achievement came out.***************
Tips before starting
1. Be familiar with the game and its mechanics. Especially dinosaur needs.
2. Save every few minutes. I have a timer for every 15 minutes. Create multiple saves if you need to. If something bad happens like a tornado or a massive breakout, sabotage. You can step back to your previous save.
3. Time is you enemy. Aesthetics are not very important but you still need to manage your space well and be organized for a high facility rating.
4. Play on Medium difficulty
5. try installing the higher level fences for your raptors and other troublesome dinosaurs.
6. Try to mix as many dinosaurs into the paddocks as you can. To save space.
7. If by 60-80 minutes in you are not at 2 stars i would recommend just start over.
5 star dinosaur rating: For This you need to get 5000 Rating points on dinosaurs Feel free to use whatever combinations work for you. But i would strongly recommend to at least build the first 3 paddocks from my list and then you can diversify from there, just make sure to have 5k before the 3 hours.
A tip i tried from player Pthe5: is that the herbivores except the sauropods were hatched with only 50% genome, to get them into the park fast and start generating money and dinosaur rating to level up fast.
Your carnivores and sauropods should all be hatched as close to 100% as possible since those dinosaurs have higher rating values.
The dinosaurs i used to get 5 stars were:
Metracrantiosaurus (whoever its spelled)
*Some of these dinosaurs are unlocked via the research center under fossils. So keep checking that section every time your rating goes up.
Sell Every fossil that you get for every dinosaur that you will not use.
** As soon as you get the Velociraptor and the Trex dig sites available focus all your efforts in getting their genomes at 100% or you will not be able to get indominous and the indoraptor. You can still 5 star the island without these 2 dinosaurs but it is much more difficult. You might need to compensate with other dinosaurs such as more of the sauropods (long necks) or other carnivores.
The combination below got my dinosaur rating to 5 stars as long as they are fed and do not have any diseases.
Now i will list how many paddocks and quantities of each dinosaur i had
Paddock 1.(first paddock you have to build)
*During the late game you can replace dead triceratops and struthiomimus with torosaurus.
Deynonychus x 8
Paddock 6* optional you can put the t rex in paddock 8
T rex x1
Indominous rex x1(to get this you need a 100% t rex and 100% velociraptor Genome.)
Paddock 8(the last one i managed to work on as time ran out)
Brachiosaur x 3
T-rex x1 (this is an additional t rex from the one on paddock 6 so this means i had 2 T rex total)
Paddock 9 (if you are running low on time just keep him in a hammond center and release him at the end when you are going for the last part of the 5 stars instad of building a paddock)
*I have been replaying this and found that instead of the indoraptor, you can just focus on getting more brachiosaurs, camarasaurus and diplodocus in Paddock 8. And Omit Paddock 9 Completely
Starting the Challenge
start building 2 power plants. a Hammond lab, expedition center and fossil center.
Get the expedition center working as fast as you can. Start working on a dig site. I started with triceratops.( i tried starting with other dinosaurs and got slower starts with the others) (get an ACU and ranger station whenever you actually need them) The research center you dont really need it until you are a one star rating. But as soon as you hit one star make sure you have it or build it asap.
The whole game the expedition center is your cash cow. As you level up your island you will unlock better dig sites, research, etc.
As soon as you can try to get a research center and upgrade your dig teams, fossil yield on the expedition center and fossil capacity.(use all 3 upgrade slots on these.) These are your priority upgrades!. You can have up to 3 dig teams.
Whenever you can. Try to have each paddock (in my case Paddock 1,2,3,5,9) to have its own Hammond lab. so you can just spawn the dinos into their paddocks without having to move them. A second use for those Hammond labs is you can spawn struthiomimus into them whenever you have a few spare seconds. So the carnivores can eat them and gain extra rating thru infamy. (i would do this whenever i had a few spare seconds between building, and waiting for expedition teams to return)
You need 5-6 Hotels.
From the other buildings you only need the Arcade, Restaurant and Clothing shop. You can max out most stats by combining these 3. buildings. (fast food and gift shop will work fine at the beginning until you can research the other 3 buildings.)
Also remember to max out the staff on each building menu.
Try to keep dinosaur visibility high. And if you can afford it build a monorail.(Although i unlocked this without one).
You will need to have enough Shelter Coverage (it took me 4 shelters)
I had all hotels and facilities close. That way you need to build less shops.
Try to keep your Facility rating at 5 stars or close to 5 stars right from the start. Dont wait until the end.
Here are both Layouts.
Layout 1 is my layout. I know its not there completely. On the top behind the HUD there are 2 power plants and an expedition center
The part that is cut down at the bottom there's nothing just fences and 1 lone Hammond lab to assist with hatching long neck dinosaurs.
Layout 2 is Chaos Mythology's Layout,(the first person to get the achievement on TA) he only used the top half of the island.