I really like the artstyle, especially the UI looks really good, and I think with some sound effects and music this could really have a great atmosphere but I found some bugs that break the game for me, and I really like the idea of the battery that runs out for the time mechanic.
Unfortunately after opening the first chest the next showed just this empty textbox, and when opening the one in the first room to the top the game froze, tried again and it froze even the second time.
This happened in another room, the one after the hallway, all the way to the top, and also all the battery drops except the first one won't be picked up by the player.
I also found that I could not go to the rooms all the way to the right, maybe I'm missing something.