Install enemylines3 by entering the following commands in the terminal:
sudo apt update sudo apt install enemylines3
Description:
semi-abstract first person 3d-shooter game
single-player game. You have to shoot evil robots before they get too close, you can use your jetpack to escape. The robos can't jump but they tear down walls.
Homepage: http://proj.phk.at/el/3/
Version: 1.2-8
Section: universe/games