The planetary colony settlement step is responsible, IIRC. When there is a lot of garrison forces, or medical facilities, or universities, you get those. And having megacities gives you bootloads of ruins.
Mind that in a PBEM game you would have human opponents with the same boons. In your situation I recommend colonizing and founding more zones to utilize the zone artifacts.
< Message edited by Maerchen -- 1/16/2021 9:12:58 AM >
The logistics hell this game is IS the fun part! - Maerchen, 2020
The good thing is, we have all the information in the reports. The bad thing is, we have all the information. Maerchen, 2020
Came for SE. Will stay for SE.