Installing GZDoom Flatpak on Linux Mint 22.1

[R4L]

This tutorial aims to show how to install GZDoom via Flatpak on Linux Mint with XFCE and install a launcher while hopefully being easy to follow.

Install GZDoom via Flatpak
If you are running Ubuntu or another Linux distro where Flathub is not enabled by default then you will need to run this command first:

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flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

If not, continue following these steps:

1. Open a terminal by pressing Ctrl + Alt + T.
2. Type the following and press Enter:

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   flatpak install --assumeyes flathub org.zdoom.GZDoom

3. You will see that the download has 7 steps total and the download will start for step 1. You may be asked to type in your login password to continue.
4. The installation will mark as complete when all 7 steps are completed:
   
   
   You should be able to see GZDoom now by clicking the Linux Mint symbol on the bottom right, then selecting the Games category:
   

Show hidden files and folders
If you try to open GZDoom now it will throw up an error saying it cannot find any IWADs in ~/.var/app/org.zdoom.GZDoom/.config/gzdoom. Notice the path has folders with . prefixes. That means these folders are hidden. We will need to unhide them!

1. Open Thunar File Explorer on the taskbar:
   
   
   Click on View, then check the box that says Show Hidden Files:
   

Now we can install our IWADs in the correct location:

1. In Thunar File Explorer, browse to your Home directory, which will be on the left labeled by a house icon and named after your username.
2. Now you should be able to browse directly to /.var/app/org.zdoom.GZDoom/.config/gzdoom.
3. Copy and paste your IWADs here.
4. Open the Applications menu by clicking the Linux Mint logo in the bottom right on the taskbar, browse to Games and open GZDoom. It should now open and allow you to select an IWAD and play.

More info coming soon.

[phinet]

Nice guide!

Some things that might be helpful to add/change:

Thunar is only installed in XFCE, not the default cinnamon desktop. The fastest way to navigate to the gzdoom folder in your file browser is to run the following command. It's not specific to any desktop or file manger, so it should work on most systems.

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xdg-open ~/.var/app/org.zdoom.GZDoom/.config/gzdoom

On some systems you need to enable flathub before flatpak can install stuff from there. This is not needed on Mint, but base Ubuntu this is required after installing flatpak. To do that this command is needed:

Code: Select all

flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

You can add "--assumeyes" to the install command to make it not ask questions. This would look like

Code: Select all

flatpak install --assumeyes flathub org.zdoom.GZDoom

[R4L]

Nice guide!

Some things that might be helpful to add/change:

Thunar is only installed in XFCE, not the default cinnamon desktop. The fastest way to navigate to the gzdoom folder in your file browser is to run the following command. It's not specific to any desktop or file manger, so it should work on most systems.

Code: Select all

xdg-open ~/.var/app/org.zdoom.GZDoom/.config/gzdoom

On some systems you need to enable flathub before flatpak can install stuff from there. This is not needed on Mint, but base Ubuntu this is required after installing flatpak. To do that this command is needed:

Code: Select all

flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

You can add "--assumeyes" to the install command to make it not ask questions. This would look like

Code: Select all

flatpak install --assumeyes flathub org.zdoom.GZDoom

Thanks! Was trying to make it simple as possible but I will revise some steps for anyone installing Cinnamon. Good call on -assumeyes, I didn't even think about it!