melonDS - A Nintendo DS emulator with support for commercial games.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Mednafen - Mednafen is a portable, utilizing OpenGL and SDL, argument(command-line)-driven multi-system...
nds4droid - nds4droid is a free, open source Nintendo DS emulator written for Android smartphones.
OpenEmu - Console and Arcade video game emulator for macOS.
gpSPhone - gpSPhone is a Nintendo Gameboy Advance emulator for the iPhone and iPod Touch.