Impress
The two civilizations made me think of inductive and deductive logic. The inductive civilians apply changing forces with one another. While the deductive civilians reduce the never ending emanation concept of existence.
Or lest that is my impression of it. I tend to be wrong on deep thinking.
I could get all the endings except the 3rd from the last. I think it has something to do with the diagrams, but I can't figure it out! I'll keep trying till I give up and scan the reviews for a strong hint.
I can't think of anything to penalize you on. I did find it annoying for the long walks I had to do, but for a game named "Looming" it seems like a literal take for the long hikes.
The story does have it loop holes and so does history/archeology in general. I want to know more about these two cultures; however given the circumstances from lack of evidence I can only keep the question looming in the back of my mind.