The "real" story in SMAC/SMACX

[Ari Rahikkala]

First thing to tell is that I don't have SMACX, so I don't know about it.
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Some things I know:

The Gaians kick @$$. They win the game by transcendence(AtT blurb), they are able to conquer Sparta command(I don't remember which blurb, but it is from book "Our secret war")

I think the UoP builds the voice of planet.

And so on... Supply things you find!

[Ari Rahikkala]

Some more, from temple of planet blurb: The 'natives' destroy Lab Three, and this makes Zak hostile towards the planet. Still it is possible that he builds the voice of planet(VoP's blurb).

[Stefu]

Morganites end up discovering lots of tech and are otherwise a big faction too... PKs and Hive are rather small. I think that Gaians are the biggest, then Morganites, then UoP, then Believers, then Spartans, then Hive and then PK's, but I could be wrong...