DYI Gamer Kit
© 2016 Technology Will Save Us
This is an Arduino-based game device that you can either build yourself, or that you can purchase pre-soldered. You then program the LED "screen" and the speaker with your computer (a USB wire is required). The games are very simple (e.g., of the Flappy Birds variety). According to the instructions, the assembly takes about 2 hours, and you'll need both a 9 volt battery and a soldering iron. Learn more at https://www.techwillsaveus.com/resources/diy-gamer-kit/
$100, Windows, Mac OSX, Chrome
Teaches: programming, coding, circuits