Tuxemon is a free and open source turn-based RPG Game for Linux, MacOS, Android and Windows. It is a monster fighting and catching game. It comes with multiplayer online battle, combine monsters, create new creatures, game maps, game script, keyboard mouse and gamepad input support, more than 183 monsters with sprites and 98 battle techniques. It is released under GNU General Public License v3.0.
How to Install Tuxemon Game on Ubuntu Linux
Tuxemon is available as a flatpak package file from remote flathub. You need to install the latest version of flatpak and flathub on your system before installing Tuxemon. Follow below link for the installation instructions.
How to install flatpak and flathub
Restart your system after the flatpak install. After that open the terminal app (ctrl+alt+t) and run below Tuxemon game flatpak install command. It will install the latest version of Tuxemon on your system.
flatpak install flathub org.tuxemon.Tuxemon
After that run Tuxemon game using this command.
flatpak run org.tuxemon.Tuxemon
You can also uninstall it via
sudo flatpak uninstall org.tuxemon.Tuxemon