BizHawk is an open-source multi-system emulator designed for tool-assisted speedruns (TAS). It is written in C#, with an emphasis on both speed and accuracy. It supports multiple systems, including the Nintendo Entertainment System (NES), Super Nintendo Entertainment System (SNES) and Game Boy Advance (GBA). It also supports popular consoles like the Sega Genesis, Sega Master System, Atari 2600, and others. Some of its features include frame-by-frame rewinding, RAM searcher and editor, Lua scripting, game state saving (savestates), and more. BizHawk also includes a debugger and an input viewer to assist in TAS creation. It is available for both Windows and Mac OS X.
Discontinued The program is no longer updated. The latest version, 3.64, released on March 7, 2010, can still be downloaded from the official website.
RetroArch
ePSXe
OpenEmu
EmulationStation
higan
Lakka
LaunchBox
Kega Fusion
Mednafen
RetroX
RetriX
EMU7800
ProSystem
Bottlenose
Discontinued The project seems to be no longer developed. The latest version, 2.0.1a, released in March 2015, can still be downloaded from the official website.