Sorry for the 2nd post, but I forgot to list two things: The logistics skill you were considering in the starbase thread, and The option to give each AI race access to all "nasty" AI tactics, without having production bonuses (perhaps as a toggle for each race).
Senjak
I think most of these have been mentioned, but I'll add my vote for them: 1) Auto-explore 2) Military build queue 3) The ability to send colony ships to available planets by selecting from a list 4) Resource allocation locks 5) Carriers 6) The Bombardment Cruiser 7) Counter-espionage, as a defense against Destabilization (with a variable spending slider, just like Destabilization and Espionage)
Based on my experience the problem seems to be that when a unique item is completed by one race, any other race that has already started it is allowed to keep working on it. I've seen many examples of another race building a unique item that I've already completed, and I've also seen another race finish something I'm building, and I've been able to finish it anyway. One thing that seems to work right is that unique items which are completed by one race are taken off the list of new i
Regarding trade goods- I know this has been mentioned a few times, but I think someone asked for some specific situations. (I was using the most recent version of the game when both of these situations happened) One of the other races built Tri-Strontium Steel, and then a while later another did, and then another. I was only in contact with one race, and it wasn't one of the three races that built that item, though I don't know if that means anything. Also, in another game I