That was a really fun Game Jam game! One of the better ones I've played. Simple and easy to get into. The isometric view and fantasy theme reminded me ever so slightly of The Immortal for the NES. I think if you expanded on this it could be really good. :)
I noticed a couple times I was able to pass through walls instead of going through the door and sometimes the grey-ish sword is hard to see against the grey cobblestone background, but even so none of those are game-breaking.