The lighting and combat are fantastic! I'm not sure if it is a bug, but I found it hard to get out of dialog without shooting. BRB gonna go unlock the shotgun!

Followup: Dangit, the final boss fight broke my cursor and it stayed broken even after a desktop restart. Had to fiddle with the plug to fix. The fight was hype though.

Wow, just wow. I loved the narrative, even when I didn't read all the notes on the ground. There was a story that touched me. The music fits perfectly. I liked the controls, even if I had to click my mouse a lot of times :D. After the first boss, I basically bought the grenade launcher and just bought lots of ammo. I'm not sure if it's a problem with the grenade launcher but on the other two boss fights it was very laggy. Sometimes like 5 FPS. Also sometimes I couldn't close the dialog. 

Very polished! Great art, great design! What I liked most was the dynamic fog of war in the dungeons! Really added to the shadowy vibe. The controls were clear, although I would've liked to be able to switch weapons with my number keys like in many shooters. I would also have liked that the game would pause when opening up a letter, because now I kept being pounded when trying to read your story. I played the swamp and the forest dungeons, after which my game sadly crashed. Maybe it could be because of the great amount of projectiles they fired off. Each time they would do an attack I'd be flung around the arena with 2 fps. Furthermore, maybe you could incorporate walls or fog in those fights to also be able to play with the fog of war in the bossfights! 

All in all a very good designed game. I was interested in the story and the letters were a great addition to give incentive to clear the whole floor. Just a fun dungeon crawl!