Sid Meier's Alien Crossfire

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Sid Meier's Alien Crossfire (also called SMACX or just SMAX) is an expansion pack to Sid Meier's Alpha Centauri, which was released by Firaxis Games. Both pre-patched games were later bundled together in the Alpha Centauri Planetary Pack.


There are seven new factions added to the game, five of them human and two of them alien. The two alien factions are determined to destroy each other, humans just caught in this alien crossfire, thus the name of the expansion pack.

Victory changesEdit

For diplomatic victory, you must eliminate any alien faction first.

An alien faction can win by completing the Resonance Communicator, and signalling their people to send a fleet to wipe out everyone else.


External linksEdit

Sid Meier's Civilization

Official series:
Civilization (MicroProse, 1991)
Civilization II (MicroProse, 1996) + Conflicts in Civilization (1996)
+ Fantastic Worlds (1997) + Test of Time (1999)

Civilization III (Firaxis, 2001) + Play the World (2002) + Conquests (2003)
Civilization IV (Firaxis, 2005) + Warlords (2006) + Beyond the Sword (2007) + Colonization (2008) (Total conversion)
Civilization V (Firaxis, 2010) + Gods & Kings (2012) + Brave New World (2013)
Civilization: Beyond Earth (Firaxis, 2014) + Rising Tide (2015)

Official related games:
Sid Meier's Colonization (MicroProse, 1994)
Sid Meier's Alpha Centauri (Firaxis, 1999) + Alien Crossfire (1999)
Civilization Revolution (2008) (not for PCs)
CivWorld (2011) (on Facebook; discontinued as of May 29, 2013)
Civilization Revolution 2 (2014) (mobile)
Sid Meier's Starships (2015) (PC and mobile)

Other games:
Freeciv (The Freeciv developers, 1996-2015)
Imperialism (Frog City Software, 1997)
Civilization: Call To Power (Activision, licensed from Hasbro, 1999)
Call to Power II (Activision, 2000)
FreeCol (The FreeCol developers, 2003-2015)
CivCity: Rome (Firefly Studios, 2006)
C-evo (Steffen Gerlach, 2006-2014)
NewCol (Frederic Vernier and associates, 2007-2011)

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