A sideways scrolling shoot-em-up in the style of the ancient arcade classic "Defender". Defeat the alien invasion by destroying all 10 waves of enemy spacecraft and rescue as many refugees as possible.
Will you survive 75 days? Set up a strategy to develop agriculture, handle transactions of agribusiness, trade for guns, train the troops, and send commanders and troops to the battle against the attackers.
You are in an alien base and have to pass through all the rooms. Kill all the enemies in order to pass each room. Each enemy has a color which can be only destroyed by a Laser-Bullet of the same color.