Gonna give some criticism which is something im comfortable with only because i genuinely enjoyed the game:
- last puzzle was a tad confusing since theres no indication the final door was open at that point
- Countdown mechanic was a bit forced because you end up using it only for one puzzle, definetely helped in adding tension but once you understand that technicaly you dont lose anything when you die the tension was more from the music then the actual gameplay mechanic
Both problems I think would have been resolved by deciding either to focus on punishing the player more upon death or by adding more puzzles that rely on your death to solve them
Other then that though I liked your game a lot, it was fun it had good consistent vibes, the puzzles were simple but still quite enjoyable, and being able to look at your clock the whole time was a nice touch, It was also quite polished art-wise, Good Job