Citra
File:Citra.svg

Citra is an experimental open-source Nintendo 3DS emulator/debugger written in C++. It's currently able to run quite a few games well, though very few can run at fullspeed on existing hardware, and sound is still completely unemulated.

Due to its preliminary state, it has not yet had a stable release.

Downloads

Compatibility list: here.

Emulation Issues

As of now, accuracy and compatibility aside, sound isn't emulated at all in the main branch. Connectivity features relying on Wi-Fi still aren't documented let alone emulated, either for DS or 3DS. This may change as emulation progresses down the road and work begins on these areas.