Full Stacks is a free puzzle game. This is a world of donuts. Donuts are delicious but they are also dangerous and they need to be stacked in a specific pattern in order to be of any real practical use. Full Stack is a game that allows you to stack all of the donuts you want in but you must do it in specific patterns. The patterns in this game are not 2 Dimensional, they do not go up and down and left and right, but they also have a depth to them, a third dimension that makes the game all the more challenging and all the more fulfilling.