First, install Steam on your Linux distribution. It's available in most software repositories or as a Flatpak [9†L25-L27]. Once installed, open Steam, go to Steam > Settings > Compatibility , and check the box Enable Steam Play for all other titles . This allows Steam to use Proton for any game you launch through it [10†L33-L35][15†L24-L26]. Select the latest version of Proton or Proton Experimental for the most up-to-date features.