Apple once developed a Tetris clone for the iPod, but never released it

In “Stacker”, objects very similar to Tetris parts move around the screen. They can be controlled using the scroll wheel and accompanying keys. Notably, adaptations of other popular games for mobile devices were found in the same data repository. As a result, Apple released dozens of games for the iPod, but it was too late – the device itself had lost relevance in the new world of smartphones.