Sometimes it's a jewel or a piece of something that fell from the sky that is the main source of energy and life of a fantasy kingdom, but that doesn't mean people can't innovate and choose to add whatever they want to a world where everything is possible, like a giant carrot with magical properties. A nation in the middle of the desert always had trouble finding water and food for themselves, which was the main reason of not developing their empire. One day, however, an alien carrot appeared and started to give them everything they need, to eat and build. It called the other nations' attention and they started to attack, being the infinite capability of building defensive towers the only possible way to protect their miracle vegetable, responsible for providing the material and energy to create them. Make sure that all the enemies will fall to remain alive.