u/Tough-Supermarket283

Guide to Get UZDOOM Working on Steam Deck

Hello everyone. Since GZDOOM is no longer available on Steam Deck for playing Doom Mods. I wanted to share with the community on how to get Doom Mods working again in a very simple way.

Below is my guide. I am at work so this is from memory only at the moment.

- Download UZDOOM for Linux located at https://zdoom.org/downloads

- Download the DOOM2.WAD file. You'll need to own the game or find this yourself somewhere on the internet.

- Download a .pk3 Doom mod. For this example I will use the Legend of Doom Mod located at https://www.moddb.com/mods/legend-of-doom

- Create a new folder on your steam deck and ensure the DOOM2.WAD file, the .pk3 mod file, and UZDOOM Linux-UZDoom-4.14.3.AppImage are all placed in the same folder.

- Now create a simple Linux Bash Script. Do this by opening a text editor in the folder you just created with all the Doom files in it and create a text file with Kate text editor and place this script in the text editor:

#!/bin/bash

./Linux-UZDoom-4.14.3.AppImage -iwad DOOM2.WAD -file LegendOfDoom.pk3

- Save the text editor in your Doom folder with a .sh instead of a .txt at the end of naming the file.

- Left mouse click on the .sh file you just created and open Properties

- Find a checkbox option that allows you to make the file executable.

- The Mod should now work without adding it as a non Steam game.

Adding Mod As A Non Steam Game For Game Mode

- Almost everyone by now knows how to do this on the Steam Deck, but here are the directions anyway.

- At the top click on Games

- Select Add a Non-Steam Game

- Browse and select the .sh file you just created.

- There is no need to add or configure Proton since the UZDOOM is an AppImage and is a native executable file for Linux.

That's it. Let me know if I am missing anything. I got this working last night, and again I am writing this guide from memory at the moment. I hope this helps everyone who is having trouble getting Doom Mods to work on their steam deck.

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