Firstly, the art on this game is really gorgeous! You should be super proud of that. The lighting effects were also great and set the mood of the game really well. In general, the gameplay was fun but there are a few things I would look into. I know parts of the game are dark on purpose to set a mood, but with the enemies being so dark it was often hard or even impossible to see them before they hit me, especially the spitter enemies, I died multiple times because one began shooting me offscreen and I didn't know what was happening before I died. I also think the gun upgrades could use a little work. The laser sight, quick reload, and 2x magazine were pretty useless because the laser wasn't visible in the dark and the reload was so fast already that it made the 2x magazine and quick reload unnecessary, so the triple shot was the only thing worth going for. There's also a glitch in the room after the elevator where once you fall down the right side and go through that passage, returning through it takes you to the door next to the elevator instead of where you just were. Overall, you should be really proud of this game! It's generally well put together and atmospheric as hell. Just a few little fixes and I think it'd be perfect!