Your goal in this fun physics based castle smashing game is to use the trebuchet to throw all sorts of projectiles towards the castle to kill everyone in the castle. Choose either campaign mode to play as the King's 'Seige Master' and destroy the enemy empire. Or create your own levels and play levels by other players. The controls are as straightforward as the previous games. Click LEFT MOUSE BUTTON once to start the trebuchet, and click again to release its deadly cargo. Timing is everything. You can also play previous parts from the Crush The Castle Series. Good luck with the destruction!