My first scenario I felt like releasing. It's pretty basic, but seems to work well enough, at least on Deepseek. Dinosaur island adventure with more realistic…

My first scenario I felt like releasing. It's pretty basic, but seems to work well enough, at least on Deepseek. 
Dinosaur island adventure with more realistic paleobiology

You and one companion (works with a variety of roles, but was intended as younger sister, and they will usually be more fearful than you due to opening prompt) are stranded on a legally distinct Jurassic Park like island, overrun by jungle and the prehistoric wildlife.

Survive a trek across dinosaur infested park ruins in search of a means of escape.
Attempt to uncover the mystery of how the dinosaurs got here and what happened to cause the disaster.
Just see how long you can keep the pair of you alive while you wait for rescue.

Adventure! Feathers! Far too many mentions of "A strange, almost reptilian musk"!

I pre-selected a list of animals for the AI to draw from, and (at least on Deepseek) they seem to be handled well, but feel free to change it up for your favorites by editing 'plot essentials'. Lesser known genera sometimes get hallucinated descriptions (eg. Altmuehlopterus), and more popular ones (Velociraptor, Pteranodon, Tyrannosaurus, etc.) often get more Hollywood treatment, rather than the instructed more realistic approach - I found genera like Camarasaurus and Tarbosaurus sit nicely in the sweet spot of the AI recognizing them and applying accurate traits without adding in movie nonsense. 