Hey 
colonel Justice,
I tried the demo and I'm impressed. Awesome work so far. Beautiful gui. I like the atmosphere, ambience sounds/music fit very well. It almost reminded me on the first Diablo (remember the butcher? xD)!
Interesting also, how you shaped things on the technical side. Light and shadow effects are very good (faking realtime shadows on the mobs was a smart and effective decision), the bullet time effect (zoom blur and desaturation did I recognize) blends seemlessly.
Performance wise it's all good. Everything ran fine and smooth all the time, and there's enough headroom. And I definitely have a mid-class pc tending to the low side ;)
You're certainly also interested in issues. Here they are:
The controls don't feel quite right. I always tried to hit the 'w'-key to move forward (analogous the other keys), meaning to move the char to the direction it is facing. That led to quite a few bad situations (e.g. when trying to step back while shooting to avoid being hit by an opponent, I often instead ran right into the opponents^^)
When dying or hitting 'esc' the level restarts to a black screen. The level is active, you just don't see anything. Only every second time the scene is displayed.
The mobs quite often hang at edges, nice exploit for the player, but certainly not wanted.
I had a hard time recognizing room walls or doors. This could be made a bit more obvious.
Nice job! I'm eager to seeing how it develops.