I love the art, the enemies, and core mechanics. It's a great throw back to some of the first fps games from what I played. It took me a minute to realize spacebar is the use hotkey. The mouse is unbearable for moving the camera especially for an action game. I found myself using arrow keys then quickly just left clicking and kiting the enemies or hoping I win the dps race. I'd prefer spacebar to be attack and e or f to be interact. q, e to cycle weapons or just 1-9 to select weapon. Or just refine the ease of use for the mouse so the current hotkeys make sense. I finished the first 2 floors.

Great work!