The highest number with 10 digits is where your newly installed Rockstar Launcher is right now. Some of them are only 4 or 5 digits long, at least one will have 10 digits.

You’ll see a bunch of folders with numbers. home/deck/.local/share/Steam/steamapps/compatdata On the Shortcut page, click the Browse… button. Right click the launcher-installer in your Steam library, and open properties again. When the install is finished it will close and you will be back on your desktop with Steam, chillin. Don’t Run the launcher at the end of the install. Leave everything in the installer on default settings. Press the Play button to launch the installer via Steam on desktop mode. Check the “Force the use of…” box, and select Proton 7.0-3 from the dropdown. Click Properties, then go to Compatibility. Right click the launcher installer entry in your Steam library, in Steam on Desktop mode. This part I could not figure out, because in Desktop mode the applications seem to not know about the SD card automatically like they do in Gaming mode.ĥ.

The first way is to somehow tell the installer to install Rockstar Launcher on the SD card. If someone can provide the right steps, I’ll edit them into this post. I am going to be sharing what I did, and it is not the most efficient, so someone in the comments will probably correct this mistake, but it is going to work out flawlessly when you’re done. It will appear in your Steam library as Rockstar-something something.Īt this point, you can go two different routes. Change the file-type drop-down at the bottom of the Open window to All Files rather than just “.desktop” files, so you can see the installer. Open Steam (on desktop) and Add a Non-Steam Game. It should appear in your Downloads folder, but regardless of where it is, just note the file location. Open your web browser and navigate to Rockstar Launcher’s website and download the installer for Windows. So, you will need ~110gb of space internally. This will require downloading and installing GTA V on your internal SSD, then we will move it to the SD card manually and get it working from there. I am typing this because I ran into a few hiccups, particularly with installing onto the SD card. This going to be a lite guide because a lot of this ground has been covered before, but I will hit every step.

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