Hi,
I guess I'm not alone in having identified how the behavior of civilians colony ships is in-appropriate. In a nutshell, once a world has enough infrastructure to support the current population, then almost all civilians colony ships head to it, intent on dumping hundred of thousands of poor souls onto it.
Case in point, I had enough infrastructures to sustain 250.000 colonists on Europa. I noticed a lot of civilian traffic toward the world, and a few days later, the population soared to 4.33 millions, with a death rate in the 300%.
This is quite easily reproducible. I often have to teleport back the population to Earth with SM. How do you deal with that, because it affects all games probably.