Not an American user?


Sid Meier's Alien Crossfire is an expansion pack to Alpha Centauri. It adds seven new factions, two of them the aliens who left Planet before the humans arrived, new technologies, new city structures, and new units.

The two new alien races are radically different from any other human faction, right down to the unit art. The player can mix and match any seven factions from the expansion pack and the original game, but the aliens have to go together or not at all. The other four human factions include a seafaring race, and an even more zealous environmental race then the original Gaians.

There is also a handy Faction Editing tool included, for all your editing needs!


Sid Meier's Alien Crossfire Windows Politics are so boring
Sid Meier's Alien Crossfire Windows The evil enemy empire
Sid Meier's Alien Crossfire Windows Building up your empire
Sid Meier's Alien Crossfire Windows Ohhh, shiny

Promo Images

There are no promo images for this game

Alternate Titles

  • "SMACX" -- Common abbreviation
  • "Sid Meier's Alpha Centauri: Alien Crossfire" -- European title

Part of the Following Groups

User Reviews

Must have? Don't think so. Windows Technocrat (201)
I will officially THUMP the idiot programmer who did the custom map programming Windows Indra is stressed (20737)

Critic Reviews

macHOME Macintosh 2000 4.5 Stars4.5 Stars4.5 Stars4.5 Stars4.5 Stars 90
GamePro (US) Windows Jan 01, 2000 4.5 out of 5 90
Inside Mac Games (IMG) Macintosh Sep 18, 2000 9 out of 10 90
Gamer's Pulse Windows 2000 85 out of 100 85
RealGamer (Benelux) Windows Jan, 2000 8.5 out of 10 85
Power Play Windows Dec, 1999 85 out of 100 85
GameSpot Windows Nov 24, 1999 8.3 out of 10 83
Mac Ledge Macintosh May 24, 2000 4 out of 5 80
Mac Addict Macintosh Sep, 2000 3 Stars3 Stars3 Stars3 Stars3 Stars 60
AppleLinks.Com Macintosh Jun 01, 2000 3 Stars3 Stars3 Stars3 Stars3 Stars 60


Topic # Posts Last Post
April 2010 Game of the Month: "Jihad" 1 bdanv
May 19, 2010


There is no trivia on file for this game.

Contributed to by Dr. Elementary (299) and Zeppin (8428)