Heretic + Hexen Collection.

mkdir ~/Public/Playground/Heretic-Hexen && cd ~/Public/Playground/Heretic-Hexen && wget https://splash.org.ru/~SerW/Playground/Heretic-Hexen/heretic_shadow_of_the_serpent_riders.zip #WAD + Manual
flatpak install flathub org.zdoom.GZDoom && flatpak run org.zdoom.GZDoom #https://flathub.org/apps/details/org.zdoom.GZDoom
cd ~/Public/Playground/Heretic-Hexen && unzip -d ~/.var/app/org.zdoom.GZDoom/.config/gzdoom ./heretic_shadow_of_the_serpent_riders.zip #https://bilge.ru/playground:gzdoom

Save Files (Heretic: Shadow of the Serpent Riders):

cd ~/.var/app/org.zdoom.GZDoom/.config/gzdoom/heretic.shadow/

GameDataPackager.

sudo dnf copr enable nalika/gzdoom -y && sudo dnf install gzdoom -y #https://bilge.ru/playground:gzdoom

Place IWADs and saves to

cd $HOME/.config/gzdoom #./heretic.shadow
cd ~/Public/Playground/Heretic-Hexen && unzip -d $HOME/.config/gzdoom ./heretic_shadow_of_the_serpent_riders.zip #https://bilge.ru/playground:gzdoom

/Applications/GZDoom.app/Contents/MacOS/

F-Droid - Free and Open Source Android App Repository. heretic_shadow_of_the_serpent_riders.zip.