Nice entry! I liked the feeling of walking through the unknown, really liked what you did with the lightning, and also the levels felt good. I find it a bit repetitive, i could not finish the game due to lack of battery and it was really too frustrating for me to go back in the maze to find another entrance when you have no lightning left.
The game without battery is really hard (i assume thats intentional) but i felt there were no safe room, for example i knew i could return back to the fireplace if needed health, but with battery i had no option but going blind. I would suggest that improvements to make the game easier and let people finish the game.
Overall really well polished and fun game. Good job!