Planetary colonization

[kmh42]

I play currently a game where I let every specis into my real so I can colinize every plantet.
Set aside the micro hell, is it econmonicly usefull to colonize every planet possible?
Are ther planets I should not colonize?
Are there playstyle where less planets are better then more?

 

[Mikhail_Mengsk]

It is, because you are multiplying the number of pop that grows. Since POP Growth is king in 2.2, you are pushed toward colonizing everything you can. Even low habiitability ones: you use them to "farm" POPs that then you can resettle in your high-abitability, highly developed core worlds.

This works because growth is handled in a rather... strange way.