FB Alpha (formerly known as Final Burn Alpha) is an open source, multi-system emulator for Windows, Linux and Mac OS X. It is designed to play classic arcade games from the late 70s, 80s and 90s. It supports games from various platforms, such as Capcom CPS-1, CPS-2, Neo Geo, and Sega System 16 (and similar systems). With FB Alpha, you can play thousands of classic arcade games on your computer. It also includes a number of useful features such as save states, input recording, a built-in debugger, and more. FB Alpha also supports many netplay options, allowing you to play online with other people.
The last discontinued version, 0.8, was released on February 20, 2004. It can still be downloaded from BeEmulated.net.