The Story

You are the commander of a tank on a desert moon. Aliens are attacking the base to steal its energy.
Defend the base!

How to play

Aim with the mouse. Click to fire a laser beam.
As soon as you get close to the left or right border, the tank will move in this direction. You can also move the tank using the Cursor Left/Right keys.
The laser needs energy to operate. It is always regenrating at a slow rate.

Display

Weapon energy is displayed in the lower left part of the console.
Your score is displayed below it.
The Radar in the center is showing all enemy ships. Ships draining energy are displayed in red.
The remaining energy of the base is in the lower right part of the console. As soon as it reaches zero, the game is over.

Power-Ups

If you destroy the alien attack sphere (this sphere needs several hits to be destroyed) you will get one of three power ups:
W - Weapon Energy: Your laser will refill much faster
S - Speed: Your tank will much faster with this extra
E - Energy: This will refill the energy of the base.