I love the idea of minor colonies feeding resources to major colonies. That way we just manage the labor colonies, and the minor ones are more like the asteroid mining bases, helpful, but easily destroyed and easily rebuilt. Maybe the major worlds can benefit in population growth and citizen generation from its numerous colonies, with benefits reducing the further the colony is from the major colony.
so we can set up colonies on Mercury to mine out the mineral rich world and send the resources to earth to boost the production there. Citizen generation linked to population makes sense, maybe they can be locally produced, like each citizen hails from a specific major colony.
invasions could also benefit from the colony rework, the minor worlds are undefended by and large because trying to do so is just not feasible. But every major world should have a legion or more defending it. Ok that note I would suggest military bases making a separate production queue for legions, maybe different kinds of regiments like tank divisions or infantry regiments that have their own uses and purposes. Like infantry take over cities better, tanks mow down infantry outside cities, and artillery devastate tanks and infantry, but only at range so they have to be supported. Also makes invasion spots more important. I would like to see invasions be more meaningful by I think that would require either much much cheaper legions, so they can be in the normal production queue, or a separate queue created by military bases so they can train *while* the world is developed.
on that note maybe more terraforming available, like maybe technologies to allow a given tier of terraforming to be used a second time to open up more land, making major worlds more worth invading.
a map of maps is an interesting idea, could be that a single cluster has a dozen or so systems linked to other clusters at various points, that would make useful choke points that are easier to defend than having a fleet at every world guarding everywhere. There would be one or two systems in range if the choke point, and hyper-gates if carried over can still be useful in connecting some major worlds so you wouldn’t have to travel across several clusters if a massive invasion shows up unexpectedly.
Personal wish list idea, make carrier able to pick which fighter it launches. I would like to design my own starfighter than I can then load into my carriers. To assist maybe have shipyards specialize to produce a specific size of ship, giving a bonus, at the cost of a maintenance fee, and they can retool to a different specialization given time. So like my Fighter Factory over Centauri II can produce fighters that I load into the Battlestars being produced over Centauri IV, both have less production than one shipyard would, but both have bonuses that make them overall more productive in their specialization. Downside is neither makes anything else very well and they cost more to upkeep so if they’re idle they’re not really helping.
well that ran longer than I expected and I know this is a bit of necro by those are my thoughts.