Castle Smasher is a new flash game by Donut Games where your goal is to destroy a castle using nothing more than a catapult. Choose your trajectory by moving the cursor, then hold the left mouse button to start the power meter. Release, watch the catapult fling stones, then grin maniacally as the enemy fort crumbles to the ground. Think of it as a simplified and reversed version of BowMaster Prelude.
Castle Smasher is short and simple but it offers a nice incentive to continue playing: upgrades. After you raze a castle you get to choose one of three bonuses for the upcoming stage: more guards, bouncier stones, or an additional stone at the beginning of the level. Guards help fend off enemy soldiers who come your way after you break open the gate, while bouncier stones can help you get more destruction per toss.
The challenge level is just about right for a casual flash game, so expect to fall flat on your face a few times before getting the hang of the gameplay. For some reason the ball bouncing physics seem to favor right-bounces, so keep that in mind when planning your next stone fling. A good strategy is to take out the far parts of the castle first and save the closer stuff for the end. Aim for the towers and try to get several good smashes out of each stone toss.
Pull out your best knight-related jokes (Why did every castle have a bank with an automatic teller? For making knight deposits.), it's time to do some castle smashing.