Whenever you open Genesis Plus again it should open the last folder you used – this way you don’t have to keep searching for the ROM each time you open the emulator. Select the ROM then “Open” and enjoy your game. Now go back to your Genesis Plus Emulator, upon opening you’ll be given a window where you will need to navigate to the ROM image that you have just downloaded. Place the image somewhere for easy access – a folder marked “Sega Genesis Games” would be a good place to store them. Once you have found your game download the ROM, the ROM image should look like a Sega Genesis cartridge. There are several sites like that have a rather large selection of ROM’s to choose from. Emulators can run ROM’s, which makes the ROM itself more the less a game. ROM images or files are copies of data from “read only memory” chips found in an old-school game cartridge. Head on over to and click on Download Now, once the file has downloaded successfully drag it onto your desktop or wherever and leave it sit for now. An emulator acts as the game console right on your Mac – allowing you to play your favorite games made for that specific console. In order to play our favorite childhood games we first need an emulator and that’s where Genesis Plus comes in. You won’t find a smoother well-developed seemingly flawless Genesis emulator for the Mac. If you have a passion for classic games like Sonic the Hedgehog, Mortal Kombat, Shining Force II or Gunstar Heroes then you’ll love Genesis Plus for the Mac.

Sega genesis emulator mac os