empire software package provides war game of the century, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install empire
empire is installed in your system.
Make ensure the empire package were installed using the commands given below,
$ sudo dpkg-query -l | grep empire *
You will get with empire package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Games |
| Package | empire |
| Version | 1.14-1 |
| Description | war game of the century |
| Sub Section | Games |