This looks really good. What are your long term plans? Free / commercial? I don't think there's much demand for this type of game -- it's not quite a roguelike and not quite an action shooter. The lack of animations and grid movement seem a little odd for this style of game.

It does look sort of confusing though. In the video on indiedb there are so many places for the player to go, I imagine it will be difficult to know where to go next unless you design the levels differently with that in mind. Related to this, the areas seem really confined in the video. I imagine you might design some different areas later (e.g. in an entirely new environment).