At the top of each tech tree there should be one or more repeatable options that simply increments the bonuses higher each time it is researched. Realistically these wouldn't be reached very often, but could allow for research to be viable in an extreme length game or for an empire who has focused on only one tree.



Examples would be:

Advanced Farming X

+5X% food production on systems



Advanced Energy Weapons X

+10X damage

+10X accuracy



//where X is the count of times it has been researched, starting at 1

This would be good, although a faction that would go high tech would try to get tech victory unless it's unused. so yeah when tech victory is not possible this would be nice.

I agree, can't believe I didn't think of that myself yet. There should be some tweaking to to the amount of improvement and the research should get more expensive with every level.