GSMS is a migration tool that allows users to import their custom apps and games from Nvidia GameStream to Sunshine. Note that Nvidia GameStream support has ended in February 2023, so users who relied on GameStream may want to consider migrating their library to Sunshine. This program updates the apps.json file for Sunshine and copies the corresponding box art images to a specified directory. It reads shortcut files (.lnk) from the default GameStream installation location. Additionally it can add games that were automatically detected by Nvidia GameStream. The found games and applications are added to Sunshine as new apps. If an app with the same name already exists in Sunshine, it will be skipped.

This program is intended for users who want to migrate their GameStream library to Sunshine and have their custom apps and games available in Sunshine. It can save users the time and effort of manually adding each app to Sunshine and finding and copying the corresponding box art images. The GameStream library and box-art images will not be modified.

To use this script, users will need to have both GameStream and Sunshine installed on their system and have a basic understanding of using the command line. The script can be run with a variety of options to customize its behavior, such as specifying the apps.json file to update, the directory where to copy box art images, and whether to preview the changes without actually updating the apps.json file.

As an alternative option to migrating custom GameStream apps, you may also migrate any directory containing .lnk (shortcut) files. Below is the preferred directory structure of a custom directory. Cover images (box-art.png) is optional.

.
├── A Game.lnk
├── Another Game.lnk
└── StreamingAssets
    ├── A Game
    │   └── box-art.png
    └── Another Game
        └── box-art.png

1. Download the latest version from our latest release.

2. Double click the program to run with default arguments OR...

3. Open command prompt/terminal and execute the following command to see available options.

   Tip

   This code requires no modification if you download the program to your Downloads directory, otherwise be sure to change the directory accordingly.

   cd /d "%userprofile%/Downloads"
   gsms.exe --help

To run the script, use the following command:

gsms.exe [OPTIONS]

OPTIONS

--apps, -a

Specify the sunshine apps.json file to update, otherwise we will attempt to use the apps.json file from the default Sunshine installation location.

--image_path, -i

Specify the full directory where to copy box art to. If not specified, box art will be copied to %USERPROFILE%/Pictures/Sunshine

--shortcut_dir, -s

Specify a custom shortcut directory. If not specified, %localappdata%/NVIDIA Corporation/Shield Apps will be used.

--dry_run, -d

If set, the apps.json file will not be overwritten and box-art images won't be copied. Use this flag to preview the changes that would be made without committing them.

--no_sleep

If set, the script will not pause for 10 seconds at the end of the import.

--nv_add_autodetect, -n

If set, the script will add all streamable apps from Nvidia GameStream's automatically detected applications.

To migrate all GameStream apps to Sunshine and copy box art images to the default directory:

gsms.exe

To migrate all GameStream apps to Sunshine and copy box art images to a custom directory:

gsms.exe --image_path C:\\Users\MyUser\\Photos\\Sunshine

To preview the changes that would be made without actually updating the apps.json file:

gsms.exe --dry_run

Our support methods are listed in our LizardByte Docs.