RetroArch -

A fast, modular emulator frontend offering portability and extensive support for systems from arcade consoles to mobile platforms, featuring game engines like Doom and Quake, and capabilities for real-time rewinding and shader support on a variety of devices.

SameBoy -

SameBoy is a user friendly, powerful and open source Game Boy, Game Boy Color and Super Game Boy emulator for macOS, Windows and Unix-like platforms. SameBoy is extremely accurate and includes a wide range of both powerful debugging features and user-facing features, making it...