Well done game! Definitely had an extremely dark tone and ending, but the atmosphere was great and the puzzles were fairly well done.
I do think that the balance for the puzzles was a little harsh for the player though. I quickly found a routine of "use the light to see around and look at the map, die, then solve the puzzle and move on". It also seems that every time you put down/pick up a light, you lose about a third of the candle, which felt harsh.
But besides that, I had a ton of fun. Nice work and keep it up, I look forward to seeing what you do next!