I enjoyed your game. At first it looked like it was still really under development, and there was no clear way to play it or get the game to actually begin.
But I persisted and found the button to get the wave of monsters coming. I reached up to Wave 8. I kept on using the Storm Tower, upgrading it and everything, because I thought that it was the only one that worked and was dealing some kind of damage. Later on, I found that the other towers also helped out.
Definitely a game concept worth developing further.