Crush the Castle is a remake inspired by Liam Bowmers' Castle Clout, boasting much superior graphics and a better interface than the original had ever offered. The game basically involves knocking down one castle after another with your massive trebuchet machine, as you travel around the map visiting each of the twenty-four locations that the resistance had claimed as their own territories.

You get only a limited number of chances to take out all the inhabitants of a castle. Everything is controlled with the mouse, with additional types of ammunition unlocked once you've beaten a certain number of stages during your adventure. A castle editor feature is also included with the game, where players can share castles of their own design with others using a handy copy and paste function.