Defend the Castle is an exciting medieval castle defense game available on Android. This game has plenty of levels and types of shells for catapult, making it a fun and challenging game for all ages. To start playing, simply choose a shell from the top left corner of the screen and touch and move the trigger of the catapult to see changes in power. The game also offers new shells that become available as you progress through higher levels.

To get the highest scores, it's important to change the shell during the game. Additionally, Defend the Castle is a totally free game, so you can enjoy it without any cost. You can even submit your score online to compete with players from all over the world. If you're a fan of arcade games and love medieval themes, Defend the Castle is definitely worth checking out.