gravitywars software package provides clone of Gravity Force, 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 gravitywars
gravitywars is installed in your system.
Make ensure the gravitywars package were installed using the commands given below,
$ sudo dpkg-query -l | grep gravitywars *
You will get with gravitywars package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Games |
| Package | gravitywars |
| Version | 1.102-34 |
| Description | clone of Gravity Force |
| Sub Section | Games |