Welcome to our Epic Games Store FAQ page, focused on common questions about using Epic Games titles with Junk Store on the Steam Deck.

Does Junk Store automatically install DLC content too?

Yes, DLC is installed automatically by default.

Do games that require third-party launchers work?

Not yet — support exists in Legendary, but we haven’t implemented it due to limited testing resources. You can attempt to configure it manually using the CLI or modify the Epic script.

Are cloud saves supported?

While Legendary supports this, we haven't implemented it yet due to potential data loss risks. If you're tech-savvy, you can manually configure this via the CLI.

I don’t have Proton GE or don’t know how to install it.

To get Proton GE or other custom versions of Proton, you can use one of the following tools:

  • ProtonUp-QT — A simple app that lets you download and manage Proton versions. You can find it in the Discover Store (in Desktop Mode).
  • Wine Cellar — A Decky plugin that works similarly to ProtonUp-QT. If you already have Decky installed for other plugins, you can install Wine Cellar directly from the Decky Plugin Store.

Once installed, use either tool to download the latest GE-Proton release. After that, you’ll be able to select it as a compatibility option in Junk Store.

Please refer to our Plugin Tutorials page. section to see how to change/check your Proton version if you are unsure how to do this.

How do I uninstall and clear game data?

In Junk Store, open the sliders menu for the game and choose 'Uninstall'. Then delete leftover files in either ~/Games/epic or your microSD under /Games/epic.

Where can I locate saved data for my Epic games?

Get the Steam ID from the game’s info panel in Junk Store.
Then navigate to your Steam compatdata folder. Example path:
.local/share/Steam/steamapps/compatdata/SteamID/pfx/drive_c/users/steamuser/local settings/application data/Dying Light/Saved

Am I able to play Fortnite?

Unfortunately, Epic Games does not support Fortnite on Linux. This means our plugin cannot magically enable Fortnite gameplay on SteamOS.

Epic’s decision stems from their refusal to enable anti-cheat functionality for Linux systems. Please refrain from requesting help with Fortnite — it’s not something we can fix.

More info: The Verge article.

Am I able to play Kingdom Hearts?

Kingdom Hearts has known compatibility issues on Linux, and this isn’t specific to Junk Store. We haven’t been able to test it ourselves as we don’t own a copy, so we can’t provide official support or recommendations at this time.

That said, you’re welcome to search for fixes or community workarounds online — others have experimented with getting it running and may have suggestions to share.

Need Help or More Info?

Here are your best starting points: