If the neighbors are militant monsters, the confrontation between them is inevitable, and this is exactly the situation in the Castel Defense game. You are invited to help the monsters located on the right, repel the attacks of the neighbors who are advancing on the left. Below in the right corner you will see a set of fighters that you can put up against the enemy. Keep in mind that each of them costs a certain amount of coins, so you need to think about what you want to achieve. You can fill the field with relatively weak forces or oppose the enemy with a small squad of very strong monsters. It's up to you in Castel Defense, this is strategy.