Hello!
I just tested your game and I think it's promising. First, it seems more geared towards Fantasy than Dark Fantasy, am I correct? Because if it's not I'd say that the skeleton SFX sounds a bit corky, however the others sound fine to me.
The music loop feels to be a bit too repetitive to me as well, it would certainly help that it would be longer and with more modulations or differences in its structure and form.
The tab button with the target command is a bit clunky as well, it would be interesting to install a mechanic to change target by moving the mouse sideways for instance.
Also, the frame rate if being laggy in my pc (and it's high performance). Something needs to be fixed in there as well.
About me: I'm a Fantasy RPG music composer and sound designer and I really enjoy finding out new games about this genre.
Hope the feedback is useful!