I hope its not abandoned, I've played all your games and enjoyed them, wish there were more like them.
I'd say this one is pretty abandoned, if he revives this it'll probably make more sense as a remake/ remaster. A 0.2 version after almost 3 years with no progress can be considered pretty much dead.
Of course he can pick it back up if he wants to, but I'd say at this point it's a pretty burned out idea & lack of what motivated this little project from it's original start.
Could be an idea for a bigger project he has/ had in mind though.