Gens+ REWiND! is an Emulator with added support for real-time rewinding! Feel free to call this feature "sands of time" if you want ;)

RetroArch is described as 'A portable, fast, and lightweight emulator frontend supporting classic and modern gaming systems with features like real-time rewinding and shader support' and is a very popular Game Emulator in the gaming software category. There are more than 100 alternatives to RetroArch for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best RetroArch alternative is Lemuroid, which is both free and Open Source. Other great apps like RetroArch are DuckStation, OpenEmu, PlayOnLinux - PlayOnMac and VisualBoyAdvance.
Gens+ REWiND! is an Emulator with added support for real-time rewinding! Feel free to call this feature "sands of time" if you want ;)

"jEnesis" is a Sega MegaDrive/Genesis Emulator entirely written in Java.
Features
Everything written completely from scratch Custom Java Motorola 68000 CPU core VDP emulation with all DMA modes Horizontal & Vertical Interrupts Support for PAL.
Relive classic FDS/NES, SNES, GB/GBC and GBA games with NiN10 Intuitive interface, compact design Enjoy retro gaming on iPhone, iPad, and Apple Watch anytime, anywhere!.




A Nintendo DS emulator app for Android, built for handhelds with physical controls and, above all, for devices.



MissingNo. is a Game Boy emulator with an integrated debugger. Play Game Boy games with keyboard or controller support, fullscreen mode, and save RAM persistence.




A modern GBA emulator designed for immersive, distraction-free gaming. With optimized touch controls, enjoy smooth gameplay in both slow-paced RPGs and fast-paced action games. Focus on stability, comfort, and reliability - like holding a clean handheld console.








Free Game Boy, GBA and Nintendo DS emulator for iPhone, with RetroAchievements, original box art and 15 languages. No ads, no tracking, no required subscription.




Advanced open-source Neogeo arcade and home system emulator based on Gngeo with a minimalist UI and a focus on low audio/video latency, supporting a wide variety of devices from the original Xperia Play to modern devices like the Nvidia Shield and Pixel phones.



gGens (MD) is a free, ad-driven emulator for Android that emulates the classic Sega Genesis and Sega Mega Drive videogame systems.




This is a derivative of Snes9x which switches the its display code from DirectDraw to Direct3D9.