How to Launch RetroArch Games via Terminal on macOS

This guide provides a step-by-step method for launching specific game content directly within RetroArch using the macOS command line. By utilizing the Terminal application, users can bypass the main menu interface to load ROMs and cores instantly, which is useful for scripting, shortcuts, or troubleshooting launch issues without manual navigation.

Prerequisites and Path Location

Before executing commands, ensure RetroArch is installed in your Applications folder. The executable binary is located inside the application bundle, not directly in the Applications root. The standard path to the executable is /Applications/RetroArch.app/Contents/MacOS/RetroArch. You will also need the full file path to the game ROM or content file you wish to launch.

Basic Command Syntax

To launch a game, open the Terminal application and type the path to the executable followed by the path to the content file. If your file paths contain spaces, you must either wrap the paths in quotes or escape the spaces with a backslash. The basic structure looks like this:

/Applications/RetroArch.app/Contents/MacOS/RetroArch /Users/Username/Games/rom.nes

Specifying a Core Explicitly

For greater reliability, you can specify which libretro core should load the content using the -L flag. This ensures the game starts with the correct emulator system every time. You need the path to the core file, usually located in the RetroArch system folder. The command structure becomes:

/Applications/RetroArch.app/Contents/MacOS/RetroArch -L /path/to/core.so /path/to/game.rom

Creating Aliases for Ease of Use

Typing long paths repeatedly is inefficient. You can create a shell alias in your .zshrc or .bash_profile to shorten the command. Add a line such as alias retro='/Applications/RetroArch.app/Contents/MacOS/RetroArch' to your configuration file. After reloading your terminal, you can launch games simply by typing retro /path/to/game.

Troubleshooting Permissions

If the command fails to execute, macOS security features may be blocking the action. Ensure that Terminal has Full Disk Access in your System Settings under Privacy and Security. Additionally, verify that the RetroArch application has not been quarantined by Gatekeeper, which can sometimes prevent command-line execution of app bundle binaries.