Cannonball

The Cannonball is ammunition used by the Cannon. While held by the player or selected in the hotbar, left-clicking on a cannon will fire one shot from the cannon's current angle. Cannonballs can also be fired from in the inventory by clicking on the cannon while holding the Auto Select key. On contact with a solid block, a Cannonball will explode, dealing damage in a small radius but leaving placed blocks intact.

Cannonballs are bought from the Pirate NPC for 15 Silver.