Imagine that the earth was an unknown alien attack, with the weapons you have, you have to defend yourself from monsters who want to destroy you. All of these monsters who are trying to fly and attack you are all surrounded by you to destroy you. Your house, your living room, even your sink are occupied. That's why you need to defend yourself by controlling your surroundings. It's up to you to destroy monsters coming out of everywhere at any moment. And remember that you are competing with players in other parts of the world. The more monsters you kill, the more gold. You can buy better weapons and armor with the gold you earn. Come on, take your place in this battle of survival!