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'''SSF''' is a closed-source [[Sega Saturn emulators|Sega Saturn emulator]] known for being the most compatiblefor a long time.

'''SSF''' was once renowned as being the best Saturn emulator from its inception in the early 2000s till around mid-2010s when a slate of newer and open-source Saturn emulation software was first launched. These included the [[Mednafen]] versions from the late 2010s and onwards with much improved Saturn compatibility, and two WIP derivatives of the old [[Yabause]] base called Kronos and [[Yaba Sanshiro]]. SSF is superior to [[Yabause]] and was initially superior to [[Mednafen]] due to higher accuracy and higher game with its early Saturn core versions for compatibility, but is Windows only and also drastically lower CPU requirements compared to Mednafen. It also has features other Saturn emulators lack such as support for true 3d transparencies (instead of checkboard mesh) and a proper de-interlacer for reducing flicker in 480i gamesclosed source. It no longer requires mounting ISO files in a virtual drive to run them(see below). The source code was uploaded to GitHub just once in late January 2021, and a couple of release packs with various builds were uploaded there, which added confusion to the emulator's development. There have been no more commits since then. Moreover, a large number of Saturn games require manual and persnickety editing in the emulator's configuration options to run properly, which furthermore prevents SSF from being recommended for most users, bar for the most devout followers. More recently, [https://github.com/shimazzz/SEGASaturnEmulator-SSF/issues/15#issuecomment-1038281021 trojan detections in recent versions] caused this emulator to become a risk for some computers, though it is still largely clean.

The author Shima was, for a time, probably the longest-time active developer on any emulator from the emulator's public launch (Labelled 'SSF 001') in 1999 till 20 years later in late November 2019. It is unknown when the first ever version was released publicly, however, the next version of 'SSF 002' was released on 5th December, 1999.<ref name="20Years_reddit">{{cite web|url=https://www.reddit.com/r/emulation/comments/e3u9wz/ssf_saturn_emulator_has_been_actively_developed/ |title=Thread: 'SSF (Saturn emulator) has been actively developed by the same single author for 20 years now.' |author='ZarkonD' |publisher=Reddit |date=30 November 2019}}</ref>