EmuNations

WinUAE is a highly accurate Commodore emulator for Windows covering A500, A500+, A600, A1000, A2000, A1200, CD32, CDTV, A3000, A3000T, A4000, A4000T and much more. It's packed with features for high DPI support, multiple Commodore accessories support, native CD and more!

Sudachi originates from Yuzu (EA 4176) and resumes its development while not at the pace of its predecessor. As such, it is open-source and written in C++ with portability in mind. It's compatibility, speed, features are pretty much on par with when Yuzu was shut down...

Stella is a multi-platform Atari 2600 VCS emulator which was originally developed for Linux, but since its original release several people have joined the development team to port Stella to other operating systems such as AcornOS, AmigaOS, DOS, FreeBSD, IRIX, Linux, OS/2, MacOS, Unix, and Windows.