Sphere Army: A Tower Defense Game

Sphere Army is a Tower Defense game, as the full name implies, where you fend off the enemies with towers you build. 3 towers to build and 20 waves each level. There are a total of 15 levels. (This is really simple, and this is the first game I created and published here. Placing the towers is grid-based.) While you progress, I left a small message. Its probably a teaser for something I might make in the future. (It is still in development, but the whole game is functional, as there are a few more features and possibly additions that I have yet to add.) Known features missing: - The range show...