Sega Master System emulators

specialized section of the Wii Shop Channel and Nintendo eShop providing games from past systems, mainly via emulation

RetroArch is a free and open-source, cross-platform frontend for emulators, game engines, video games, media players and other applications. It is the reference implementation of the libretro API, designed to be fast, lightweight, portable and without dependencies. It is licensed under the GNU GPLv3.