Game Description:Add-on to Alien Shooter (also known as Invasion: Earth in the UK). Day after day, the hope for human survival is fading. Half of the Earth's surface is inhabited by the monsters. Now people have to dwell in specially made fortified settlements. Here they live, work, study, have children and invent new ways to fight the aliens.
Now the leading scientists of Earth are working on creation of the new monster species, which should stop the invasion. Will the scientists succeed? Can their plans be realized, or this can cause even a larger disaster?
The add-on features five new missions, new music and monster types, a new boss, new objects, and the ability to choose the difficulty level.