HBMAME (HomeBrew MAME) is a derivative of MAME, and contains various hacks and homebrews. It is based on the latest MAME source at the time of release.

Supermodel emulates Sega's Model 3 arcade platform, allowing you to play a number of ground-breaking arcade classics on your PC. The aim of the Supermodel project is to develop an emulator that is both accurate and playable. As with virtually all arcade hardware, no public documentation for the Model 3 platform exists. What is known so far has been painstakingly reverse engineered from scratch. There is still plenty left to figure out and the emphasis at this early phase of development is toward accuracy rather than speed and usability.

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.

M64Py is a Qt5 front-end (GUI) for Mupen64Plus 2.0, a cross-platform plugin-based Nintendo 64 emulator. Front-end is written in Python and it provides a user-friendly interface over Mupen64Plus shared library.