I really like the concept, could go extremely far and I hope you end up doing it justice. The one idea I would personally like to see is noita-ish interplay of elements and physics objects.
The thing I’d focus on next is the combat (damage feedback, some non-beeline AI) and getting some sounds in.
Music is a certified schizocore banger and would go harder with a mute button.
Is the framerate capped somehow? I get only 67 FPS. Also I think the (game green thing) cursor should always be visible.