Very atmospheric! I like the concept of the light source and the trade off of blocking the light with your shield but being protected and vice versa. I would have loved it if I could control the knight with WASD and light source slightly with arrow keys just to help a bit around corners. I think it's commendable that you stuck to no attacks at all to stick firmly to the theme! Slight note, the inclusion of the tutorial is something a lot of people pass over even though it takes so little time and helps give your game a fighting chance so much, so kudos on that! Very well done!