Mesen-S is a cross-platform SNES emulator for Windows & Linux built in C++ and C#.
Mesen-S v0.1.0 Alpha changelog:
First release - this is an alpha-quality release.
In other words, there may be critical bugs - please don't use this to start playing a 5+ hour game!
Among other limitations, none of the enhancement chips (Super FX, etc.) are currently supported, so any game that uses them will not work.