I like the story and the basic idea is pretty cool.
Just somehow i think i have not fully understood what to do or so (maybe because just played the web-version?).
It's just walking around and killing enemies (what's nothing bad ;-) ), but the problem is, that shooting a projectile or doing a ritual needs a lot of time and let's me not move, so that i nearly always get damage, when doing one of that. In the end on the "best" run i killed so maybe max 5 enemies or so^^
But anyhow, i think if you balance it a bit more, could definitely have potential. Especially graphics and sound deliver a well fitting mood already.