Thanks for quick answer!
From an outside perspective, seems that you were too much focusing in adding more and more content ( I'm referring to SBTT ). My advice is to focus on the core mechanics and when that one is really good and you have a lot of feedback from players, move to other mechanics .
Do you have UI to show to potential players? I mean, me :D You could get a lot of feedback without code anything, I think is right approach!
Btw, good work, I'm following you because I believe in this kind of games and with the right mix of gameplay elements could be really interesting !