Auto update Proton GE on Linux (Glorious Eggroll version with latest fixes for games)

[CohenTheBlue]

EDIT: Based largely on work by laedit (Jérémie Bertrand) https://laedit.net/2024/08/04/installing-and-updating-ge-proton-automatically.html
/EDIT

Run this bash script to automatically download the latest version of Proton GE. May work on Steam Deck, probably needs adjustments to at least the guide below.

Restart Steam to have it update the list of Protons that are available (since this Proton is externally added by you).

Paste this code into a file like proton-ge-update.bash , save. Run from terminal

 bash proton-ge-update.bash 

or
give the file executable permission for your user

 chmod u+x proton-ge-update.bash 

and run from the terminal

 ./proton-ge-update.bash 

NB! I have not tested this for the Steam flatpak version, should work but not sure. The date of this post is May 13 2025 , this script may stop working in the future and need updating.

#!/bin/bash
# Update GE Proton
set -euo pipefail

currentUser=$(whoami)
githubReleaseUrl="https://api.github.com/repos/GloriousEggroll/proton-ge-custom/releases/latest"
compatibilityToolsDir=compatibilitytools.d/
steamNativeDir=/home/$currentUser/.steam/root/
steamFlatpakDir=/home/$currentUser/.var/app/com.valvesoftware.Steam/data/Steam/
tmpDir=/tmp/proton-ge-custom

if [ -d "$steamNativeDir" ]; then
  dir="$steamNativeDir$compatibilityToolsDir"
elif [ -d "$steamFlatpakDir" ]; then
  dir="$steamFlatpakDir$compatibilityToolsDir"
else
  echo "steam not installed or installation not supported"
  echo "folders searched:"
  echo "- $steamNativeDir$compatibilityToolsDir"
  echo "- $steamFlatpakDir$compatibilityToolsDir"
  exit 1
fi

# make steam directory if it does not exist
mkdir -p $dir

latestRelease=$(curl -s $githubReleaseUrl)
version=$(echo "$latestRelease" | grep tag_name | cut -d\" -f4)

# check if version already installed
if [ -d "$dir$version" ]; then
  echo "latest version $version already installed"
  exit 0
fi

# make temp working directory
mkdir $tmpDir
cd $tmpDir

echo "installing version $version"

# download tarball
curl -sLOJ "$(echo "$latestRelease" | grep browser_download_url | cut -d\" -f4 | grep .tar.gz)"

# download checksum
curl -sLOJ "$(echo "$latestRelease" | grep browser_download_url | cut -d\" -f4 | grep .sha512sum)"

# check tarball with checksum
sha512sum -c ./*.sha512sum

# extract proton tarball to steam directory
tar -xf GE-Proton*.tar.gz -C $dir

# copy release notes
echo -e "$(echo "$latestRelease" | grep body | cut -d\" -f4)" >> "$dir$version/release_note.txt"

cd ..
rm -r $tmpDir

echo "version $version installed"