Installing Battle.net on the Steam Deck opens up access to a vast library of popular PC titles including Overwatch 2, Diablo IV, and World of Warcraft. While Valve's portable handheld runs on Arch Linux, setting up Blizzard's dedicated launcher is a straightforward process when using Steam's built-in Proton compatibility layer. Following a few essential steps will ensure smooth installation and optimal game performance in handheld mode.
Switching to Desktop Mode and Downloading the Installer
To begin the setup process, power on your device and press the Steam button to open the system menu. Navigate to the Power section and select Switch to Desktop Mode to access the full Arch Linux interface. Once in Desktop Mode, launch your preferred web browser and navigate to the official Blizzard website to download the Windows installer executable file.
After the setup file finishes downloading, open the Steam desktop application. Click on the Games menu at the top of the interface and choose the option to add a non-Steam game to your personal library. Browse your local files to select the downloaded installer file, making sure to change the file filter settings to display all file types.
Configuring Compatibility Settings with Proton
Before launching the installer executable, you must force Steam to run the application using Proton compatibility. Locate the installer file in your Steam library, right-click it, and open its properties menu. Navigate to the compatibility tab, check the option to force the use of a specific steam play compatibility tool, and select a recent version of Proton GE or Proton Experimental.
Run the installer directly through Steam to complete the standard Battle.net client setup process. Choose your language preferences and follow the on-screen prompts until the installation finishes. Once the client software is installed, close the installer window completely so you can update the shortcut path in Steam.
Updating the Application Path for Direct Access
To launch the desktop client correctly in the future, you must update the file path inside your Steam library settings. Reopen the properties menu for the non-Steam shortcut and update the target field to point directly to the newly installed executable file located within the virtual C drive directory. This prevents Steam from launching the initial setup file again when starting the app.
It is recommended to configure launch options to ensure proper window rendering and touch display responsiveness. You can easily adjust display settings and controller layouts directly through the Steam interface. Fine-tuning these parameters provides a seamless user experience during extended portable gaming sessions.
Optimizing Controls and Returning to Gaming Mode
After finalizing the launcher configuration, return to your handheld interface by clicking the Return to Gaming Mode shortcut on your desktop screen. You can now launch the application directly from your library interface alongside your native games. Before starting games, adjust your trackpad controls to emulate standard mouse movement for easier menu navigation.
Running games through custom launchers allows you to enjoy high-performance PC titles on the go. Taking the time to properly configure graphic presets and performance settings will help maintain stable frame rates while preserving overall battery life. With everything properly configured, you can effortlessly access your entire Blizzard library anywhere.
