freeorion software package provides turn-based space empire and galactic conquest game, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install freeorion
freeorion is installed in your system.
Make ensure the freeorion package were installed using the commands given below,
$ sudo dpkg-query -l | grep freeorion *
You will get with freeorion package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Games |
| Package | freeorion |
| Version | 0.4.5-1build1 |
| Description | turn-based space empire and galactic conquest game |
| Sub Section | Games |