Casey's Contraptions is a physics based puzzle game that is similar to the Incredible Machine and Crazy Machines series in that it involves creating chain reactions by building various Rube Goldberg machines.
The player has to complete an objective in each level, like making balls hit a certain target, release balloons or make structures collapse. They can freely place different objects on the screen, and once they are done, press the play button. This makes the physics engine take care of the rest. Depending on the creativity of the solution, a maximum of three stars can be earned, affecting the player's rating. The game also includes a level editor and by completing chapters more items to use in it are earned.