LaunchBox

LaunchBox is a game launcher for Windows for both retro games and modern games.

LaunchBox uses RetroArch for its game emulation by default, as of v12.2 (2021). RetroArch will be downloaded the first time you import a ROM from LaunchBox's UI.

Failure

LaunchBox has its own ROM importing mechanism that copies files to \Games\*\* in your install directory (so %USERPROFILE%\LaunchBox\Games\*\* by default). There is a mechanism to scan for ROMs added to these folders manually, but they must be sorted into the correct "platform" folder. LaunchBox doesn't have documentation cataloging these "platform" folders, so igir does not currently support them.