I wanted to take a break from EASY dark souls games and play some hard/difficult games.
This game is really good. Sure, the puzzles a bit hard... IF YOU ARE A BABY!
Joking aside it's been a long while since I've had to use pen & paper when playing a game.
The game doesn't do any hand holding. Everything you need to solve a puzzle is in that manual.
There is also easy mod for puzzles, which I ended up not using.

TL;DR Good story, difficult puzzles. What more do you want? Buy the game.

A story well written and bundled as a puzzle game , I wont spoil anything but I will say this is a short experince but it is intended to be one ,the game sits with you even after finishing it , I loved the writing , music and the visuals . hope to see more from this developer in the future , you made a beatiful game .