FreeOrion is a free open source turn based space empire and galactic conquest game for Linux, Windows and MacOS. It is based on classic 4X model and inspired by the Master of Orion games. It is released under the terms of the GNU GPL 2.0 and CC-BY-SA-3.0 license. It comes in single player and multi player modes and you need at least OpenGL 2.1 support to play this game.
Install FreeOrion on Ubuntu Linux
FreeOrion is available via flatpak, snap and Ubuntu default repositories. For the latest version prefer the flatpak method. If you don’t have flatpak install it on your system. Follow below link for the instructions and restart it. After that open terminal (ctrl+alt+t) and run below FreeOrion flatpak installation command.
flatpak install flathub org.freeorion.FreeOrion
You can run FreeOrion via below command.
flatpak run org.freeorion.FreeOrion
and uninstall FreeOrion via
sudo flatpak uninstall org.freeorion.FreeOrion
Install FreeOrion via APT:
Open terminal command line app ctrl+alt+t and run below FreeOrion apt installation command to install it.
sudo apt-get install freeorion
Install FreeOrion vis Snap:
FreeOrion is also available via snap package from snap store. In terminal run below command to install it.
sudo snap install freeorion
You can uninstall FreeOrion via
sudo snap remove freeorion