RetroArch - RetroArch is a frontend for emulators, game engines and media players.
LaunchBox - LaunchBox is a portable, box-art-based games database and launcher for DOSBox, emulators, arcade cabinets, and PC Games. Download it free!
Mednafen - Mednafen is a portable, utilizing OpenGL and SDL, argument(command-line)-driven multi-system...
Playnite - Source code generated using layoutit.com
VisualBoyAdvance - VisualBoyAdvance (VBA) is a free software (GNU GPL) emulator targeted for the Game Boy, Super Game...
Photon Game Manager - Photon is an advanced game launcher that is designed to make your game collection look amazing.