This demo was awesome! The narrative and setting and visuals was definitely the strongest part of it. I don't think anyone would say the moving block puzzles added anything to the game (personally it just felt like filler), but everything else, and how narrative choices affect characters stamina, and becomes a language puzzle, is really good. Really want to see where the story goes.
(also one of the battles was unfortunately impossible to complete because of my choices earlier and having not enough health. Hope in the final version there's at least a way to avoid impossible saves that force replaying the game again.)