Nestopia is the current king of the NES emulation hill. It uses highly optimized cycle exact emulation, allowing it to run titles that rely on precise timing, many of which break under inferior emulators. This accurate emulation does come at a cost; Nestopia requires a minimum of a 600MHz machine for full speed; but if you have one, this the best available NES emulation.

Nestopia was initially developed for Windows by Martin Freij. The original sources may be downloaded from the Nestopia home page. The toolkit used to develop the Macintosh port, including the bridge code to link it to Nestopia, will be available in the longer term from my developer pages. Certain portions are available now, and more will be added in the future. Further information is also available from the enclosed Read Me file. Learn more.