melonDS - A Nintendo DS emulator with support for commercial games.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
RetroFab - Playable 3D simulations of vintage electronic games
Drastic - Drastic is a Android DS Emulator
OpenEmu - Console and Arcade video game emulator for macOS.
gpSPhone - gpSPhone is a Nintendo Gameboy Advance emulator for the iPhone and iPod Touch.