Space Conquest: Galactic War mod for Half-Life 2

About 250 years have passed since the explosion of the second big bang. It is the year 500 Galactic Era, in short form. GE. Some religious people refuse to call it that, because their 'lord' didn't come back to set a new era. To them it would be the year 10,500. In the year 9,500, 500 years before the new era was set, the entire universe had been colonized. Alien and human populations alike had been allies. At least.. until 'it' happened. An entire human empire had been destroyed by a race called the Garren. This caused a war between the humans and the Garren, but others got involved. The war was ended when any species of aliens were not allowed on human planets, and humans were not allowed on alien planets. Soon an alien slave trade had started, causing another war. The war lasted until today, and will continue, but had greatly decreased in extremes. Some alien species were wiped out of the universe entirely by the second big bang. The humans survived, along with...