What are the commands and shortcuts? I don't even know if there is an options menu. I don't even know if there is a way to exit the game without manually closing the window. The camera doesn't reposition itself when you lean against walls, preventing you from seeing anything in front of you.
If you're playing this game for the first time, you have to keep pressing the mouse right button in order to shoot (instead of clicking for each shoot).
Nice idea, but it requires small adjustments on game mechanics. Such like adding dodge option and a movement to get rid of when grabbed by zombies.