Good tower defend game.
I can't pass the first storm it have so many enemy if I know when storm is finish it will be good.
So I had to read comment to pass the first storm. and I can mine other material than crystal? during storm is it a bug or feature. and may be show how many crystal in this stage.
When I find the material for build base if it have no boarder I would be loss.
And collider of player is a bit weird it should have only on player foot and collider of tree, rock and crystal don't have to change size just change only image size when mine it.
when I place many of crossbow my FPS drop when it fire and kill many enemy I don't know you use obj pool or not if not i recommend you should use it.