Besiege is a game where the object is to build siege engines to take down armies and castles. One extremely effective siege weapon is the catapult, which is loaded with physics. Catapults can be loaded with projectiles that when released are launched at extremely high speeds and over long distances. How a relatively small mechanism can create such large amounts of force and speed is similar in some ways to the crossbow, but different in other ways. With a bow, the string can be drawn back at different distances and can be made with different thicknesses. With a catapult, the exact same amount of potential energy can be transferred to the projectile every time causing much more consistency. This is because of a counterweight, which is placed on the opposite side of the lever as the projectile. This counterweight must weigh much more than the projection itself in order to cause an imbalance, much like a teeter totter. This causes a much higher launch speed because of the mechanical advantage created. Besiege allows you to build catapults, which can fire stones so fast that they can break through castle walls and flatten armies showing the raw power that a knowledge of physics can bring.