About the game
Sid Meier's Alpha Centauri Planetary Pack includes the original Alpha Centauri and the expansion, Alien Crossfire.
Mankind begins its most monumental task: the colonization of space. A crew of internationally renowned scientists and security strategists, with wide-ranging convictions and diverse ethics, embarks on a mission that will change the world. One Planet. Seven unique factions. Which will you lead? Each faction has its own agenda, each leader a final goal. You must play to each strength and exploit each hidden weakness in your quest to rule the future.
Key features:
- Great spin-off of the legendary Civilization series, in a refreshing sci-fi setting
- Design your own units. Balance their speed, power, and toughness to suit your current tactical needs
- Seven factions to chose from, each with its own artificial intelligence model that creates a very suggestive feeling that you’re up against real people
*Conditions and restrictions apply. See www.ea.com/legal for details.
Description from the publisher’s Microsoft Store listing.
Screenshots
Tap to expand · from the Microsoft Store listingAlso on Game Pass
Game details and art come from each game’s official Microsoft Store listing (cover images are cropped from those official images, or from publisher press kits, with our title overlay; nothing is AI-generated); art © the respective publishers, used for editorial review. Game Pass membership from Microsoft’s public Game Pass catalog, checked Sep 29, 2026. Critic scores appear only where a real aggregate exists; otherwise “Not yet reported”.