Overall, I liked the atmosphere of the game. The environments and background music create a calm, relaxing vibe that even reminded me a little of the early parts of Pokémon. I also thought the idea of collecting materials from defeated dinosaurs to create your own dinosaur was really fun and interesting.
The biggest issue I ran into was the camera. Even the slightest mouse movement would cause it to shake around wildly, leaving me staring at either the ground or the sky, and it was very difficult to get it back to a normal angle. (This issue still occurred after I adjusted the camera speed in the options) Because of this, I basically had to avoid using the mouse and move while looking in a single direction the entire time.
Another issue was the material drops. I'm not sure whether they're supposed to be random or guaranteed, but I kept getting the same materials over and over. Even after unlocking the second dinosaur, I still couldn't craft a new one because I was missing the required materials.