Letter: G
- gambatte-qt - Qt4 Gambatte front-end
- gambatte-sdl - SDL Gambatte front-end
- gcube - Nintendo Gamecube emulator
- gfceu - GFCE Ultra Nintendo Emulator frontend
- gltron - A 3D game inspired by the movie TRON
- gnuboy-fb - Nintendo GameBoy Color emulator (frame buffer version)
- gnuboy-sdl - Nintendo GameBoy Color emulator (SDL version)
- gnuboy-x - Nintendo GameBoy Color emulator (X version)
- gtetrinet - GNOME version of a tetris game playable on the net