Fall Guys Steam Deck configuration guide [FULLSCREEN FIX]
Running the Game
Prerequisites
First, install the game as you normally would with any steam game.*Additionally, you need to search for and install "Proton EasyAntiCheat Runtime" on Steam.
Proton-GE
With the default proton installation on SteamOS, Fall Guys fails to launch. A fix for this is to install the community built "Proton-GE".- Switch to desktop mode (hold power button and press Switch to Desktop
- Open "Discover" from the start menu
- Search for and install ProtonUp-Qt
- Launch ProtonUp-Qt from the start menu
- Click "Add version" and install GE-Proton7-[Whatever the latest version is] (you might have to try other versions if you have issues)
- Once it's done installing, return to Gaming Mode and go to the Fall Guys page in your library
- Click settings and go to Properties... > Compatibility
- Select "Force the use of a specific Steam Play compatibility tool
- Choose GE-Proton7-[Version you downloaded]
Fullscreen Fix
The game has some trouble detecting the 16:10 aspect ratio display on the Steam Deck, so you can edit some text files to force the game to run at 1280x800p
- Launch desktop mode & download GHex from the Discovery store
- In desktop mode - open steam & go to Fall Guys
- Click the settings icon & go to Manage > Browse local files
- Look for "unityplayer.dll" & hover over it, then click the left trackpad & click "open with" & search for GHex [it's under the development tab]
- Click the search icon on the top right & search for "39 8E E3 3F" & replace it with "CD CC CC 3F" for BOTH INSTANCES [click "find next" after replacing the first one & also replace the second]
- Click the save icon on the top right and close
- Switch back to gaming mode & launch the game, it should be fixed
Troubleshooting
EasyAntiCheat error in the main menu of Fall Guys
- Make sure you installed "Proton EasyAntiCheat Runtime on Steam.
Stuck on EasyAntiCheat loading screen when first launching Fall Guys
- Try using GE-Proton7-15 when first setting up the game, then switch to a newer version. Newer versions have some important stability fixes.
End
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