Nice idea, very good looking game. It reminds me the Doom game.
The aim its a bit off, and holding a key to turn the camera is useless. Imagine playing csgo holding C key to move the cam.
The game lack of performance after some minutes of gameplay and make you fail even its quite easy to kill guys.
But the originality of the game make me forget about the bad parts, and thank you for posting the progess on twitter.