Emulicious is a free to use multi-system emulator for Windows, Linux, Mac OS(X) and any other operating system supporting Java SE. Emulicious consists of the following emulators: A Nintendo Game Boy Emulator, A Nintendo Game Boy Color Emulator, A Sega Master System Emulator, A Sega Game Gear Emulator. Even though Emulicious aims for precision and cycle accurate emulation it still provides some additional features and tools: Automatic Updates,  Adjustable Turbo,  Adjustable Throttle,  IPS Patching and Savestates (Master System/Game Gear only)

New version of the unofficial continuation of the NINTENDO 8 emulator project (Famicon) - Nestopia. It is worth mentioning that at the moment Nestopia UE is being developed only as an application for Linux and as a library included in the project libretro, strangely 1.49 a version for Windows has been made available. The changelog has not been made available to the file, you need to make use of svn.