Quite enjoyable!
Liked the artstyle, almost liked the music, the gameplay, while really simple, didn't become boring too quickly. I don't know if you know, but the spiders don't despawn, allowing for infinite grind until you are overpowered.
The game has some minor design flaws, like shields being completely unviable, or the spell description giving more of a flavor than actual explanation what it does, but still, very solid game.
One major flaw I can recall is the rather incorrect use of this perspective - there are no shadows, so you can't really feel where the hitbox of the projectile is, and also not being able to go behing a wall felt a bit wrong.
Great job!