How to Show Hidden Files on Steam Deck: Power User Guide

The Underlying Mechanism: Why SteamOS Hides Your Files

• Any file or folder whose name begins with a period (such as .local or .bashrc) is automatically classified as a "dotfile" and hidden by the operating system.
  
  
• Unix developers originally implemented this convention to keep home directories uncluttered by configuration scripts, caches, and runtime data.
  
  
• Valve utilizes this exact structure to store essential gaming environments, compatibility layers, and application runtimes away from standard user view.
  
  

3 Fast Methods to Show Hidden Files in Desktop Mode

Method 1: The Global Keyboard Shortcut (Fastest)

1. Launch the Dolphin file manager from the application launcher or taskbar.
   
   
2. Press Ctrl + H on your keyboard.
   
   
3. Hidden files and directories will appear instantly, rendered with slightly translucent icons to indicate their hidden status.
   
   
4. Press Ctrl + H a second time whenever you want to toggle visibility off.
   
   

Method 2: The Dolphin File Manager GUI Menu

1. Open Dolphin in Desktop Mode.
   
   
2. Look at the top-right corner of the Dolphin window and click the Hamburger menu (the icon with three horizontal lines).
   
   
3. In the dropdown list, locate the checkbox labeled Show Hidden Files.
   
   
4. Click it once to check the box. Hidden directories will populate immediately across your active view.
   
   

Pro Tip: In KDE Dolphin, clicking the hamburger menu every time gets tedious on handheld controls. Click the hamburger icon, select Configure Toolbars..., locate Show Hidden Files in the left panel, and move it to the right panel. This places a dedicated one-click toggle icon right on your main Dolphin navigation bar.

Method 3: The Command Line Interface (Konsole)

1. Open Konsole from the SteamOS application menu (under the System category).
   
   
2. To list all files including dotfiles in your current directory, execute:
   
   
   Bash

   ls -la
   

3. To view hidden directories sorted by file size (useful for hunting down bloated shader caches):
   
   
   Bash

   ls -lahS
   

4. If you want to list only the hidden items in a directory:
   
   
   Bash

   ls -d .!(|.)
   

Method Comparison: Choosing the Right Approach

Critical Hidden Directories Every Deck User Must Know

/home/deck/
├── .local/
│   └── share/
│       └── Steam/
│           └── steamapps/
│               ├── compatdata/       <-- Proton Windows Prefixes (Game Saves, C-Drive)
│               ├── common/           <-- Native Game Install Directories
│               └── shadercache/      <-- Pre-compiled Graphics Shaders
├── .var/
│   └── app/                          <-- Flatpak Application Data (Emulators, Chrome, Discord)
└── .config/                          <-- KDE Desktop & System Configuration Files

1. The Proton Compatibility Directory (compatdata)

• Path: /home/deck/.local/share/Steam/steamapps/compatdata/
  
  
• Inside this folder, every non-native Windows game installed via Steam has its own numerical AppID folder.
  
  
• Inside any specific AppID folder, navigating to pfx/drive_c/users/steamuser/ brings up the simulated Windows user directory containing AppData, Saved Games, and Documents.
  
  

2. Flatpak Sandboxes (.var/app)

• Path: /home/deck/.var/app/
  
  
• Applications installed through the Discover store (like RetroArch, PCSX2, RPCS3, heroic games launcher, or web browsers) run sandboxed inside Flatpak containers.
  
  
• Their custom configs, bios mappings, and persistent save states live directly within their designated .var/app/[app.identifier] folders.
  
  

3. Shader Cache Repository (shadercache)

• Path: /home/deck/.local/share/Steam/steamapps/shadercache/
  
  
• Houses the pre-compiled DirectX and Vulkan pipelines downloaded by Steam to prevent in-game frame hitching.
  
  
• Useful to inspect when diagnosing SSD storage bloat from games you have previously uninstalled.
  
  

Hands-On Workflows: Modding, Saves, and Emulation

Workflow A: Transferring Offline PC Saves to Steam Deck

1. Turn on Show Hidden Files in Dolphin.
   
   
2. Look up the targeted game's Steam AppID on steamdb.info (for example, The Witcher 3 is 292030).
   
   
3. Navigate to /home/deck/.local/share/Steam/steamapps/compatdata/292030/pfx/drive_c/users/steamuser/Documents/The Witcher 3/gamesaves/.
   
   
4. Copy your .sav files from your desktop PC directly into this directory using a USB drive, local network share, or KDE Connect.
   
   
5. Launch the game in Gaming Mode; your save files will register immediately.
   
   

Workflow B: Installing Custom Mods (Nexus / Manual Drops)

1. Reveal hidden files in Dolphin.
   
   
2. If the mod requires configuration files placed inside the user profile, open /home/deck/.local/share/Steam/steamapps/compatdata/[AppID]/pfx/drive_c/users/steamuser/AppData/Roaming/.
   
   
3. Drop the respective mod config files into place.
   
   
4. If an override DLL is needed, open Steam in Desktop Mode, right-click the game, select Properties, and add WINEDLLOVERRIDES="modfilename=n,b" %command% into the Launch Options field.
   
   

Pro Tip: If you frequently manage mods across multiple titles, avoid manually drilling down through the nested .local/share/Steam/steamapps/ structure. In Dolphin, navigate to the compatdata directory once, then drag the folder icon into the Places sidebar on the left. This creates a persistent quick-access bookmark that survives reboots.

Real-World Limitations, Hazards, and Edge Cases

1. Accidental Deletion of Proton Environments

2. Flatpak Isolation Hurdles

• If an emulator file picker fails to display your .local or .var folders even after enabling them in Dolphin, the emulator itself lacks filesystem access permissions.
  
  
• Install Flatseal from the Discover store to manage permissions.
  
  
• Open Flatseal, select the target application, scroll to Filesystem, and grant access to All user files (filesystem=host).
  
  

3. Read-Only Root Filesystem (steamos-readonly)

• Avoid disabling steamos-readonly simply to adjust app behavior.
  
  
• Keep all your configuration overrides, scripts, and mod installations contained strictly inside /home/deck/.
  
  
• Any modifications made outside the home partition get wiped whenever Valve pushes a major SteamOS system update.
  
  

Troubleshooting Common Issues

"Show Hidden Files" Keeps Turning Off After Reboot

1. Open Dolphin.
   
   
2. Click the top-right hamburger menu and select Configure Dolphin...
   
   
3. Navigate to the View Modes tab on the left.
   
   
4. Ensure your view preferences are applied globally rather than set to remember custom properties per directory.
   
   

Cannot Find the AppID for a Non-Steam Game

• To locate it quickly, sort the /home/deck/.local/share/Steam/steamapps/compatdata/ folder by Date Modified.
  
  
• Launch your non-Steam game once in Gaming Mode, exit it, immediately return to Desktop Mode, and inspect the newest folder created in compatdata.
  
  

Frequently Asked Questions

Will showing hidden files impact my Steam Deck gaming performance?

How do I hide the files again?

Can I view hidden files on my MicroSD card?

Why do some folder names turn slightly faded when revealed?