This game can be called an ancestor of the Worms game series. The goal is very simple: you need to destroy the enemy's fortress with the help of cannonballs. However, behind the simplicity, a far more intricate process is hidden. The Castle allows the player to customize the game settings to diversify each duel: you can change the curvature of the landscape and the height at which the fortresses are relative to each other; you can change the degree of influence of the wind on the shots; you can even choose the magnitude of the gravitational force and the number of hits after which the fortress is considered defeated.