An old IOS game made with Swift + SpriteKit. This game was on the app store for free and got around 400 downloads. The goal was to set up the level and guide the blocks to the exits. When the play button was pressed, the blocks would move through the level and navigate their way through the machine you set up. The blocks would collide elastically with other blocks. There were about 60 levels, and later levels featured more complicated mechanics like binary counting.