Godot 3.0.2 (Mono Version)
Godot requires Mono 5.4.x but the Fedora repo is still stuck on an older version. Install the latest directly from the Mono Project (currently 5.10.x).
http://www.mono-project.com/download/stable/#download-lin
rpm --import "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF"
su -c 'curl https://download.mono-project.com/repo/centos7-stable.repo | tee /etc/yum.repos.d/mono-centos7-stable.repo'
sudo dnf update
sudo dnf install mono-devel
wget https://downloads.tuxfamily.org/godotengine/3.0.2/mono/Godot_v3.0.2-stable_mono_x11_64.zip
unzip Godot_v3.0.2-stable_mono_x11_64.zip
sudo mkdir /opt/godot-3.0.2/
sudo mv Godot_v3.0.2-stable_mono_x11_64/* /opt/godot-3.0.2/
download a decent png icon (256px square) and save it as /opt/godot-3.0.2-mono/godot.png
Create a desktop shortcut vim ~/.local/share/applications/godot.desktop with the following content
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Name=Godot
GenericName=Game Engine
Comment=Cross-platform game engine to create 2D and 3D games
Exec=/opt/godot-3.0.2-mono/Godot_v3.0.2-stable_mono_x11_64
Icon=/opt/godot-3.0.2-mono/godot.png
Terminal=false
Type=Application
Categories=Development; Games;
If you've installed the Mono version then you may find that it's not possible to download the export templates using the gui. You may need to manually download them and install them from the file directly.
https://downloads.tuxfamily.org/godotengine/3.0.2/Godot_v3.0.2-stable_export_templates.tpz
They will get installed to ~/.local/share/godot/templates/3.0.2.stable but you will need them in ~/.local/share/godot/templates/3.0.2.stable.mono/
You could rename the directory, I decided to create a new directory and copy over the Linux template
mkdir ~/.local/share/godot/templates/3.0.2.stable.mono/
cp ~/.local/share/godot/templates/3.0.2.stable/linux_x11_64_* ~/.local/share/godot/templates/3.0.2.stable.mono/