A team in the UK designed them, partly inspired by the BBC Micro, a hackable and affordable computer from 1981. The system is based around the Raspberry Pi, an inexpensive and small single-board computer. Play all of the games! RetroPie with controllers There are disk images of each and every cartridge, with a built-in menu to choose which one to play. There are no cartridges, only files on disk.
A RetroPie is a small - smaller than a pack of cigarettes, smaller than a game controller - gaming system that emulates all of the classic consoles.
A few weeks ago I put together a RetroPie.