Steam

The popular game distribution platform and library management client from Valve.

NOTE: activate the multilib repository in /etc/pacman.conf to install Steam/Proton.

pacman -S steam

Manage Steam compatibility tools

Apart from Valve's Proton distribution, there are other compatibility tools available with patches and performance improvements for games.

ProtonUp-Qt is a graphical utility to manage many different compatibility tools, not only for Steam but also other launchers like Heroic Games Launcher.

It's available from the AUR:

yay -S protonup-qt

Another management tool that integrates with the look & feel of the GNOME desktop is ProtonPlus, also available in the AUR:

yay -S protonplus

Where are my game saves for Proton-enabled games?

Games that are running via Steam Proton on Linux all use their own Wine prefix. The location of game data is here:

~/.steam/steam/steamapps/compatdata/[game ID]/pfx

You can look up a game's ID by accessing its properties in the steam client:

1. Right-click on the game
2. Select "Properties..."
3. Go to "Updates"
4. Note down the "App ID"

Then navigate the directory structure in the drive_c/ subdirectory that replicates a Windows directory structure. Personal files are under the drive_c/users/steamuser/ directory.