Man builds Tetris console inside cardboard box
Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. There was a time when you had to travel to your nearest arcade or beg your parents for a Game Boy if you wanted to play Tetris. Today, the iconic, addictive puzzler is available online for free and in countless forms across nearly every gaming platform imaginable—even a PDF. Part of the inherent appeal for many people is the game’s mounting difficulty, but more crafty fans can take things up a notch by building their own Tetris-playing machine. And as software writer and hobbyist William Gaspar recently proved, you don’t need a plastic case to protect it. A tiny cardboard box will do just fine. Gaspar’s creation looks endearingly wonky, but manages to play Tetris (not to mention Snake) as well as any premium device. All of the code information and construction steps are available for free on GitHub, too. The key to its size and affordability is an Arduino computer paired with an ATmega328P single-chip microcontroller, as well …

