Phenomenal demo - complex puzzles, decent story, immersive atmosphere and sensational visuals - sadly, I wasn't able to fully finish the demo.
Once I finished playing this (well, technically I quit, because I struggled with the camera puzzle) I remembered that 3 years ago, I did play the prototype version of this and I couldn't be more happy to see the growth in quality, game development and overall storytelling. Superb job on the game.
Wish you all the best with this development and hope to play the full game soon. Best of luck!