Simple, but with some good twists.
Great game! My kid and I had a lot of fun getting up to some skeleton shenanigans, and I would definitely recommend for anyone to try out. I also did a full review here on my site - I hope it helps!
https://www.ttrpgkids.com/2022/10/28/tiny-tome-tiny-review-numbskulls-an-all-ages-tabletop-rpg-about-skeletons