
Retroarch
Genesis Plus GX core

RetroArch is a frontend for emulators, game engines and media players. It enables you to run classic games using Libretro cores on a wide range of computers and consoles through its unified graphical interface. Settings are also unified so configuration can be done once and applied and applied to all. It has advanced features like shaders, netplay, rewinding, next-frame response times, and more.
Consoles covered include but are not limited to PlayStation 1, Super Nintendo, Nintendo Entertainment System, GameBoy/GameBoy Color, GameBoy Advance, Arcade, Neo Geo Pocket Color, Virtual Boy, Sega Genesis/Mega Drive, Sega Master System/Sega Game Gear, Sega CD/Mega CD, PC Engine/PC Engine CD, WonderSwan Color/Crystal, Cave Story, Doom(s) and much more!
It can run on the usual platforms like Windows, Mac OS X and Linux, but it stands alone in that it can support far more platforms beyond just that.
Lakka - lightweight Linux distribution for small computers like Raspberry Pi
Last Stable Release:
1.9.0
Dated:
09-08-2020
--
Windows: Vista+
Linux: Please follow their instructions
Mac: Apple macOS High Sierra+ with Metal2

TwoMbit
TwoMbit is a cycle/bus accurate emulator for Sega's 8-bit game consoles (Master System, Gamegear, SG-1000)
1.0.5
Last Stable Release:
24-07-2012
Dated:
...

MAME
Multiple Arcade Machine Emulator is a free and open source emulator designed to recreate the hardware of arcade game systems. The aim of MAME is to be a reference to the inner workings of the emulated arcade machines; the ability to actually play the games is considered "a nice side effect". The emulator now supports over seven thousand unique games and ten thousand actual ROM image sets, though not all of the supported games are playable. It worth mentioning that MESS was integrated upstream into MAME in the past.
Unofficial recent MAME 32-bit versions are available here..
0.227b
Last Stable Release:
31-12-2020
Dated:
--
Windows: Vista SP1+
Linux: Nothing reported
MacOS: 10.9+
CPU: Intel Core series CPU or equivalent 2.0 GHz+
GPU: modern card with Direct3D 9.0c+ / OpenGL
RAM: 4GB+
Support files
MAMEUI is an integrated front-end for MAME.
Sort by category, release year, version, etc.
File maintained by MASH containing all the information from "mametesters.com". It gives information about the status of games in MAME-Arcade (i.e. development, bugs, improvements).
History.dat - 0.227 DAT / XML
Access all trivia, facts, tips and other information for the games and machines
x64 GUI version of MAME on the Windows platform.
Snapshot pack - Update (install original first)
Source Code file
Icon Pack file
WolfMAME - 0.227
Main / Source Code / Source Code (gz)
Used to prevent cheating (.inp) and important for establishing records
An add-on for Pugsy's XML cheat (arcade part only). Note it has to be used in addition to the original file