Issues with Junk Store itself? This section covers general plugin problems — from install issues to launch errors and everything in between.

I don't have any extensions—what do I do?

If you don’t see any extensions, you’ll need to generate them. Currently, Junk Store supports extensions for Epic, GOG, and Amazon.

To generate extensions:
  1. Open Junk Store by pushing Select button above the D-pad.
  2. Make sure you're logged in to your Junk Store account.
  3. Scroll down to the Tools section.
  4. Open the sliders menu (☰) next to the search bar and select Download All Presets from Server.
  5. Then, go to each extension you want (Epic, GOG, Amazon) and press the Download button (📥) for each one.
Once downloaded, the extensions will appear as tabs in Junk Store.
My game won’t launch after a fresh install. What should I do?

Let’s go through a step-by-step checklist to make sure everything is set up correctly. After each step, try launching the game—this helps identify exactly what fixed the issue (if it does).
  • Check if Epic is in offline mode
    • Sometimes Epic being set to offline can prevent games from launching.
    • Go to: Junk Store > Epic Tab > ⚙️ Cog Icon
    • Make sure Offline Mode is toggled off
    • If you change this setting, make sure to Press X to Save

  • Install any missing game dependencies
    • Missing or broken dependencies can cause launch issues.
    • You may get prompted to install things like Microsoft C++ runtimes when first launching.
    • Easily install any missing dependencies via our built-in dependency installer (no more Proton Tricks)

  • Verify and repair the game files
    • Corrupted or incomplete installs can be fixed with these tools.
      To verify game files:
      Junk Store > [Your Game] > ☰ Sliders Menu > Verify Game
      To repair game files:
      Junk Store > [Your Game] > ☰ Sliders Menu > Repair Game

  • Change to a GE-Proton version
    • Some games require a more compatible version of Proton.
      Go to:
      Junk Store > [Your Game] > Press Y > ⚙️ Cog Icon > Compatibility
      Select a GE-Proton version

  • Enable the EOS Overlay
    • Some games require the Epic Online Services (EOS) overlay to launch properly.
      Go to:
      Junk Store > [Your Game] > ☰ Sliders Menu > Enable EOS Overlay
My game shows a rainbow screen (TV test), black screen, or fails to launch. What should I do?

These issues are common with non-Steam games and are often related to Proton compatibility. Junk Store defaults to the system version of Proton, but this doesn't always work well for all games.

Try using a GE-Proton version:
GE-Proton tends to be more compatible with non-Steam games and often fixes these launch issues.
  • To change Proton version:
    • Junk Store > [Your Game] > Press Y > ⚙️ Cog Icon > Compatibility
  • Select a GE-Proton version from the list
Where to get GE-Proton versions:
  • Wine Cellar (Decky Plugin)
  • ProtonUp-QT from the Discover Store on your Steam Deck
Need more tweaks? Or still having issues?
If you're still stuck, feel free to reach out on our Discord server. Please be patient—our team is small! We’ll do our best to help, but since we don’t own every game, we may only be able to offer general advice instead of a guaranteed fix.

Check ProtonDB.com for community-recommended tweaks or launch options that may be needed to get your specific game working.
My games are missing or not showing up in the Epic/Amazon/GOG tab. What should I check?

If your games aren’t appearing in one of the store tabs, try the following checks to resolve it:
  • Check "Show Installed" isn't toggled on:
    • Check the bottom-right of the store tab (Epic, Amazon, or GOG)
    • If Show Installed is enabled, only games already installed will be visible
    • Disable this to see your full game library
  • Check the search bar:
    • Make sure you haven’t accidentally typed something into the search bar that’s filtering your games
    • Clear the text field to show all titles
  • Check your login account:
    • You might be logged into a different Epic/Amazon/GOG account
    • Log out and back in with the correct account linked to your game library
  • Refresh the game list:
    • Go to the Epic/Gog/Amazon tab and select the sliders menu to manually refresh the game list
    • This can help pull in any missing titles, especially after login or token changes
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 to see how to change/check your Proton version if you are unsure how to do this.
I'm logged in, but no games are showing. What should I do?

If you're logged in but your games aren't appearing, try the following steps:
  • Refresh your games list
    Go to the main Epic/GOG/Amazon tab → ☰ Sliders Menu → Refresh Games List
  • Reboot your Steam Deck
    Sometimes a restart is all it takes to reload everything properly.
  • Log out and log back in
    From the affected storefront tab, log out and then log in again to refresh the token and game data.
My game gets stuck at the Steam pre-launch screen. What should I do?

This issue might be caused by another plugin—such as decky-cloud-save or syncthing—locking Junk Store’s files.

Make sure nothing is interfering with the following folder:
~/.config/junkstore
Junk Store relies on this data directory to function correctly, so if another tool is syncing or locking files in that path, it can prevent games from launching.
Having issues bringing up the keyboard in Game Mode?

If the Steam + X shortcut isn’t bringing up the keyboard try the following:
  • Try to bring up the keyboard ⌨️ from the Quick Access Menu (⋯).
  • Tap directly on a text field (like a password box) to prompt the keyboard.
  • Try toggling to Desktop Mode and back to Game Mode to reset input services.
  • Restart Steam or the device if the issue persists.
This is a known Steam bug that has been around for a while. These steps usually help work around it until Valve fixes it in a future update.
Why won't my game launch?

Games may fail to launch for a variety of reasons. Here are some common causes and what you can do:
  • Wrong compatibility layer:
    Try switching to a different version of Proton. Non-Steam games usually work best with GE-Proton. We recommend finding a version that works well for most of your library and using it as the default for non-Steam games.

    However, some titles require a specific version of Proton or GE-Proton to run properly.
  • Missing dependencies:
    Some games require additional libraries such as Microsoft C++ Runtime or DirectX. These dependencies may not always trigger an obvious error message, so try installing them if you suspect they’re missing.
Check ProtonDB:
If the game still won’t launch, visit ProtonDB.com for community tips. You may find game-specific tweaks, compatibility reports, or Proton version recommendations that solve your issue.
I installed a game on the new version and can't see it in the Decky one?

The new version of Junk Store uses a different system, so games installed there won’t show up in the older Decky version — and can’t be moved over.

If you’re switching back to the Decky version:
  • Back up any save files manually otherwise they will be deleted.
  • Uninstall the game from the new version (to free up space).
  • Reinstall the game from within the Decky version of Junk Store.
  • Restore you game save manually.
Tip: Do this before your trial ends — otherwise, you may lose access and the games will still occupy storage.