Speccy emulates 16kB, 48kB, and 128kB versions of Sinclair ZX Spectrum, as well as Spectrum +2, +2A, and +3, as well as Timex Sinclair models. Although I had done some ZX-related work in the past and even maintained comp.sys.sinclair FAQ at some point, for many years I abstained from writing a Sinclair ZX Spectrum emulator. It was mostly due to the fact that there are so many other Spectrum emulators around, so writing another one seemed redundant. On the other hand, the lack of a Speccy emulator felt like a gaping hole on my resume :). So, here it is, yet another Spectrum emulator, trivially named Speccy. Currently, Speccy is not a commercial project but rather a test bed to try out different things before introducing them into my other emulators. .

ColEm is a portable emulator of the old ColecoVision videogame console. It should run most ColecoVision games and supports Coleco's SuperAction controllers with spin wheels.  ColEm is written in portable C and thus can be ported to any sufficiently fast computing platform.

Cemu is the first eighth generation console emulator in the world, specifically the Nintendo Wii U. The requirements are big - at least efficient Core i5 and 6 GB RAM, Nvidia graphics card or AMD with support for OpenGL 4.0 (and if possible, OpenGL 4.5), 64- Windows bit (7, 8.1 or 10). In return, we get the ability to run games smoothly even in 4K resolution (although it is better to have 1080 Ti). Also DRC (GamePad), Pro Controller and Classic Controller controllers are emulated, the keyboard and USB controllers are partially supported.

Steem SSE is a new version of Steem based on that source release. It incorporates new features and emulation improvements, some of them based on the Hatari  and SainT emulators (this "emulation" goes both ways), some on various internet discussions technical documentation, like chip datasheets, and  tests on real hardware. Steem SSE aims to be the #1 STF/STE emulator. There's no limitation in the original Steem code structure (in C++) that would make that goal unreachable. 'SSE' stands for 'Steven Seagal Edition'. Steven Seagal is a well known Aikido grandmaster, action movie star, musician and playboy. It is rumoured he has a shadowy past working for some secret agencies.  

Fuse (the Free Unix Spectrum Emulator) was originally, and somewhat unsurprisingly, a ZX Spectrum emulator for Unix. However, it has now also been ported to Windows, the Wii, AmigaOS and MorphOS or MacOs. What features does it have? Accurate 16K, 48K (including the NTSC variant), 128K, +2, +2A and +3 emulation. Working +3e, SE, TC2048, TC2068, TS2068, Pentagon 128, Pentagon "512" (Pentagon 128 modified for extra memory), Pentagon 1024 and Scorpion ZS 256 emulation. Runs at true Speccy speed on any computer you're likely to try it on. Support for loading from .tzx files, including accelerated loading. Sound (on Windows and Mac OS X, and on systems supporting ALSA, the Open Sound System, SDL or OpenBSD/Solaris's /dev/audio). Kempston joystick emulation. Emulation of the various printers you could attach to the Spectrum. Read more

Nintendulator is an open source Win32 NES emulator written in C++. The original goal was to emulate the NES down to its hardware quirks; though it's fallen behind over the years, recent builds have caught up once again and can emulate certain behaviors most other emulators neglect to handle. However, this emulation precision comes at a price - a 1500MHz (estimated) or faster CPU is required to emulate at full speed. Supported file formats include .NES, UNIF, FDS (fwNES format), and NSF. Mappers are handled using external DLLs, complete with extra sound channels for most games which provide them. Other notable features include writing to FDS images (by storing the differences in separate files), Game Genie support (limited to 3 codes), customizeable controllers (including 4 player), input movie recording and playback (with re-recording), AVI Read more

fMSX is a program that emulates MSX, MSX2, and MSX2+ 8bit home computers. It runs MSX/MSX2/MSX2+ software on many different platforms including Windows, Android, Symbian, MacOS, Unix, MSDOS, AmigaOS, etc. I started developing fMSX in 1993 when there were only two other MSX emulators available, both exclusively for MSDOS. From the very beginning, I developed fMSX as a portable program able to run on many different computers. The initial development, for example, was done on DEC Alpha workstations running Unix. Since then, fMSX has seen quite a lot of updates and been ported to many systems. It is still being developed, although not as actively as before because most features are pretty much complete now.

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.

ARCADE is a continuation of the MAMEUIFX project. It is based on the latest MAME source at the time of release.

MAME's purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important "vintage" software from being lost and forgotten. This is achieved by documenting the hardware and how it functions. The source code to MAME serves as this documentation. The fact that the software is usable serves primarily to validate the accuracy of the documentation (how else can you prove that you have recreated the hardware faithfully?). Over time, MAME (originally stood for Multiple Arcade Machine Emulator) absorbed the sister-project MESS (Multi Emulator Super System), so MAME now documents a wide variety of (mostly vintage) computers, video game consoles and calculators, in addition to the arcade video games that were its initial focus.