It is a time of upheaval on Planet Chiron. As five new factions fight for recognition, Alpha Centauri's original alien inhabitants return to do battle above the skies of humanity's new home.

As the survivors of this alien civil war fall to the surface, the factions of humanity struggle with the implications of their impending arrival. Will the humans band together to overcome the alien threat? Or will diplomacy prove more effective in dealing with the invaders?

Double the gameplay of Sid Meier's Alpha Centauri in the Official Expansion Pack, Sid Meier's Alien Crossfire. With seven new playable factions and a host of new gameplay additions, this is a must have add-on for every Alpha Centauri fan.

• CONTINUE MANKIND'S FUTURE IN SPACE
  Follow the expanding story of mankind's struggle to colonise an alien planet as new ideologies arise and the original inhabitants of Planet return
  
  
• SEVEN NEW FACTIONS
  Control and interact with seven new playable factions (5 human, 2 alien) each offering new strategies, tactics and advantages. Most people's favourites are the water borne Svengaard and his Pirates, but the two Alien races offer very unique playing challenges, principally because you are on your own, very powerful but no one likes you, PLUS the other alien race is always at war with you without respite.
  
  
• NEW TECHNOLOGIES, PROJECTS, AND MORE
  Seven new technologies, four new secret projects, five new weapons, four new armour types, seven new base facilities, two new native life-forms, and more make this a must have add-on for every Alpha Centauri fan.
  
  
• NEW VICTORY PATH
  As leader of an alien faction, construct the Singularity Beacon to call in re-enforcement's and gain ultimate dominance over Planet.

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