EmuNations

Ruffle is a Flash Player emulator written in Rust. Ruffle runs natively on all modern operating systems as a standalone application, and on all modern browsers through the use of WebAssembly and has extensive content compatibility in ActionScript...

WinArcadia is a multi-system emulator of Signetics-based machines released during the 1970's and 1980's. It supports load/save snapshots, CPU tracing, trainer, graphics scaling, automatic loading of per-game configurations, netplay and much more...

Pureikyubu (formally Dolwin) is an open-source Nintendo GameCube emulator which initially started development in 2004. It went into hiatus but is now active. That said, it's not the most advanced but has interesting features and is able to boot and run some commercial games and demos...