Catastrophic Cannon is a two player local multiplayer game where players fire different cannonballs in order to destroy the other player's castle. The player with the most castle blocks standing at the end or the player who destroys the other castle first is the winner.

This game was developed in GDD211 by Andrew Fulop, Zach Munck, and Jarrod Osofs; the current game was later polished in GDD411 by Andrew Fulop.