[Mylon]

Other things I would like to see:

Discovered ruins should give the the ability to research a new tech area that leads to reproducing and modifying any artifacts recovered. Analysing enemy ships would give a bonus to researching technology the ship uses.

Resources. I found this a bit deeper it the thread and I would also like to see limited resoruce production, though probably based on a per turn basis rather than a mineral conVersion basis.

Population immigration. Another idea deeper in the thread that would make sense. Given that alliances between races, particularly trade alliances, would involve these races mingling, it would make sense to see more than one race on a border planet near an ally.

Partial retention of captured race stats. The idea is that a captured race would probably be enslaved for purposes of the owning empire. Certain aspects of the race might not apply under enslavement, and revolts might turn the planet into an independant or back to the hands of the empire the race belonged.

Battle simulator. This is sort of a love/hate relationship, really. It makes sense that such a race would have the technology to similate their enemy's ships, but this also removes the excitement of only being able to test your new design in real combat.