Persona 3 Portable Modding on the Steam Deck

• From gaming mode, install the game and run it at least once
• From desktop mode, run the Discover Software Center and install Protontricks and Flatseal

Download the following files :

• https://aka.ms/vs/17/release/vc_redist.x64.exe
• https://aka.ms/vs/17/release/vc_redist.x86.exe
• https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/runtime-desktop-7.0.0-windows-x64-installer?cid=getdotnetcore
• https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/runtime-desktop-7.0.0-windows-x86-installer?cid=getdotnetcore

Download the Reloaded II Mod Loader : Reloaded II Releases Page [github.com]
Take the latest version Release.zip file

Launch Flatseal, select Protontricks and activate the “All user files” option

Open the the first dependency installer you downloaded with Protontricks Launcher
On the next window, select the Persona 3 Portable Wine Prefix

Follow the installation steps for the dependencies

Do this for each of the 4 files you downloaded

Extract the release.zip file from Reloaded II in any folder
You should get a directory structure similar to this one :
Do a right click on Reloaded-II.exe and run it with Protontricks Launcher using the Persona 3 Portable wine prefix (Like you did for the dependencies)

Reloaded II shoud start after the first launch tutorial

Click on the + button on Reloaded to add an application
Browse to the game install folder and select P3P.exeIf you installed it on the default location, it should be in the folder :
My Computer / Z: /home/deck/.local/share/Steam/steamapps/commom/P3P/P3P.exe

If you can’t see your “.local” folder while inside “deck”, just type .local in the textbox at the bottom and press Enter

The game should appear on the left side of Reloaded

You can use the top-left button to install mods and activate them on the game page

When done, click on the Edit Application link on the game page
Unroll the “Advanced Tools & Options”, click Deploy ASI Loaded and confirm

You can now close Reloaded

Still in Desktop Mode, start Steam and find Persona 3
Right click on it and click on Properties

On the properties, set the launch options to :

You can now go back to gaming mode and start Persona 3