I haven't read this book but watched 3 body problems series adaptation. It's pretty complicated stuff for me to comprehend but hey! you make me want to check out this one, sounds indeed like Lord of the flies but the science fiction version.

I was wondering if like greed, war or things of that nature exist in a world govern by children. Maybe they mutate? I don't know but don't give me spoilers, I want to read it myself to know haha