In the "Power trebuchet"-game you destroy hostile castles and their protectors. The Lite free version of the game contains one demo castle to destroy.
The mission is to destroy the castle and enemy fighters, hitting them directly or with wreckage. You are awarded prize points according to the mission's difficulty.
The game is based on physical principles - every object is influenced by the gravity and can be destroyed. You trebuchet shells have parabolic trajectory and are also influenced by all physical laws.