Please, for the love of everything sacred, make this into a fully fleshed out game. This is everything I like in games mushed together and I love it!
The one thing I'd like to see added that actually feels a little bad at the moment is control rebinding. I'd much prefer to use the numpad for 8-directional walking like this. And using the mouse to click in menus where you've selected and not where the actual mouse pointer is was pretty confusing for a while, same for attacking obviously, so I'd have rather used keyboard for that too but the key that is there for that is a bit awkwardly positioned.
Other than that, just more variety and this game would be pure gold :)