Where the techs you're getting aren't really techs but institutions and everything is an incremental linear modifier.
Each city have a civilization value and each nation also have a civilization value which is based on the total civilization value of all cities from what I understand and your national civilization value will slowly drift to that target.I don't care how it works so long as it's not like Rome Total War where if you are Germanic you conquer civilized areas and you are stuck permanently using wooden clubs and dog skin armor. I want to see some kind of advancement especially for civilizations like that.
My point in other posts had been that there was minimal technological development in this period (of around 275 years)
Archimedes 287 - 212 BCDidn't Archimedes create his principle at this time, allowing ships to become potentially gigantic?
Discovered rather than created
Practical potential size of ships isn't just about displacement
Something like the CKII mechanic for tech spread?I think a Stellaris type system sounds like an interesting way to model the various small refinements rather than revolutions of the period.
There just needs to be a good way to model the way these small innovations spread across the world once they arose.
I'm not sure how this should be handled in the game. I'm also no expert in Roman technological achievements.Here's a genuine question: why is it so important for this game to have a sophisticated technology system? In Civilization, technology is critical because the point of the game is you progress from the stone age to the information age. In Europa Universalis, technology is critical because you have a major transition from the Late Medieval to the Gunpowder era in Europe, and also you have massive disparities in technology between interacting countries. In Hearts of Iron, technology is critical because a big part of WW2 was the arm races happening behind the scenes.
What is the equivalent to EU's transformation of warfare + famous tech differentials or HOI's arms races that makes it so essential that R:I have a sophisticated technology system? Because if there isn't a compelling one and you're just including tech because all historical strategy games MUST include tech, it's going to inevitably feel unimportant and tacked on no matter what the mechanics are. You have to establish why there needs to be a technology system before we can seriously discuss what it should be.
I'm not terribly familiar with the period so I could use some pointers here.
My point in other posts had been that there was minimal technological development in this period (of around 275 years).
For example Alexander the Great's fleet which shadowed his army in the March back from India included quadriremes, possibly also quinquriremes. A few larger ships were constructed, but usually only one large flagship.
There were some military reforms in this period, e.g. other states developing 'imitation legionaries' and the restructuring of the Roman legion, but other than the introduction of iron mail, possibly also stone throwing rather than bolt firing engines, I can't really think of any technological military developments.
I don't see any social, political, religious or engineering developments.