FreeOrion is a free, open source, turn-based space empire and galactic conquest (4X) computer game. The game is designed and built by the FreeOrion project, inspired by the tradition of the Master of Orion games. However, it’s not a clone or remake of that series or any other game. The project provides binary installers for Windows and OS X, but Linux users have to compile from source. The following instructions show how to compile and install FreeOrion on Fedora.
To compile, first install the following prerequisites. (correction – added python-devel thanks to comment)
sudo dnf install python-devel cmake libvorbis-devel boost-devel zlib-static freetype-devel mesa-libGL-devel mesa-libGLU-devel SDL2-devel glew-devel openal-soft-devel sudo dnf groupinstall "C Development Tools and Libraries"
Now download the source from GitHub.
git clone https://github.com/freeorion/freeorion.git
FreeOrion: Build and install
Create a directory for the build.
mkdir freeorion_build cd freeorion_build/
Now build FreeOrion. If you have a multi-core processor, you can add -j# to the make command. Substitute # with the number of cores on your system as below. If you don’t know, it’s safe to leave this option off.
cmake ../freeorion make -j4 sudo make install
You can now find the game in your applications list. In GNOME Shell, hit the logo button, or move your mouse to the Activities hot corner to find it in the list:
The game has a built-in guide (‘Pedia) with valuable instructions on how the game is played. Below you can also find a game play and tutorial video.