You're onto something
Nice work when you made this; you were definitely onto something. I loved the basic concept of the game. However, it got way too repetitive in the later stages, and all there was to look forward to were the new spells? Which frankly didn't cut it because every other level you'd have to walk another 10 or more seconds just to get to the new house that was built down the road.
The spells were interesting, and unlike some of the previous comments, i dont think that the difficulty curved levelled off too fast; if anything - too slow for me.
Work on the general concept of the game; the idea was definitely there; but more variation and less distance to walk will probably help to increase the score. That said; well done!