Sid Meier's Alien Crossfire

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.

Gameplay changes

Victory changes

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.

New content

New factions

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.

New technologies

• Adaptive Doctrine
• Adaptive Economics
• Bioadaptive Resonance
• Field Modulation
• N-Space Compression
• Progenitor Psych
• Secrets of the Manifolds
• Sentient Resonance
• String Resonance

New base facilities

• Aquafarm
• Brood Pit
• Covert Ops Center
• Flechette Defense System
• Geosynchronous Survey Pod
• Subsea Trunkline
• Subspace Generator
• Thermocline Transducer

New secret projects

• The Cloudbase Academy
• The Manifold Harmonics
• The Nethack Terminus
• The Planetary Energy Grid

New unit weapons

• Fungal Payload
• Resonance Bolt
• Resonance Laser
• String Disruptor
• Tectonic Payload

New unit armors

• Pulse 3 Armor
• Pulse 8 Armor
• Resonance 3 Armor
• Resonance 8 Armor

New unit special abilities

• Algorithmic Enhancement
• Dissociative Wave
• Fuel Nanocells
• Marine Detachment
• Soporific Gas Pods

New units

• Battle Ogre MK1
• Battle Ogre MK2
• Battle Ogre MK3
• Fungal Tower
• Sea Escape Pod
• Sealurk
• Spore Launcher
• Unity Gunship
• Unity Mining Laser

External links

• Detailed playing guide
• SMAC/X forums