RetroArch is a front-end for a large number of game console emulators, video players and game engines. With its help, we can play retro games on our PC that were released for various consoles. It can be installed on a number of popular platforms such as Windows, Linux, macOS, Android, iOS, Raspberry Pi etc. In addition, it can also be installed on modern consoles such as PlayStation, Nintendo Switch, Wii, GameCube, XBox etc. If you do not want to install it, then it can also be used from within a web browser through this web app.
After installing RetroArch when you first launch it, you might get confused as to where to start or how to load a retro game in it. With some hit and trial, you can learn to work with RetroArch. It also provides online help for the beginners. It comes with video help that shows all the steps from installing to playing the games successfully. If the instructions are followed, you can start playing games in under 10 minutes.
Basically, what you have to do is load the core for the emulator that you want to use. For example, if you want to play games released for Amiga then first you have to load core for that emulator. Only after loading the proper core, you can move to the next step of opening the game ROMs or disc images.
For loading the content, you can either open a ROM file that is available from the local storage, or you can load the content from the original game disk. We can also dump a physical disc on the local storage drive in form of a disc image for later use. The software has all the features to control the screen such as FPS, aspect ratio, vertical fresh rate and more. We can play games in the full-screen mode and use game controllers.
You can download RetroArch from https://www.retroarch.com/.