I have no idea what is the best strategy for science victory, some people seem to focus on expansion while others focus on building up science early, will be interesting to see which strategy pays off in the end. I personally did a mix of both strategies. I went heavy on military early on with my usual archer rush strategy and have 8 cities which seems to be average. Hopefully I will soon have the whole continent to myself. As far as science is concerned It seems I'm doing very good in comparison with ~70 science per turn, I will hit the industrial era on turn 106 with scientific theory and plan to build oxford right away. Spoiler turn 100 : - Where did you settle your city? Moved north to settle next to the gypsium deposit - What did you research and which policies did you choose and why? Opened mining into archery than went for astrology to found a religion with the "free" divine spark pantheon I would get from the dyes. After that I was just getting whatever good stuff I had an eureka for before going for a scientific theory beeline. Since this is king difficulty I haven't felt to need to get crossbows or even iron working. On the policy front I don't know what I'm doing but I went for the government one into theocracy beeline. - What was your build order? slinger->builder->slinger->slinger->archer->holy district - How soon did you build a District? Which ones did you prioritize? Went for holy right away to get a religion. Apart from that it's mostly campuses and industrial. - How did you place your districts? Rome and stockholm have some good spots with a lot of mountains for adjacency bonus so that's what I went for. - Did you emphasize expansion? How many cities have you built/captured in the first 100 turns? I tried to balance tech and expansion. I settled one city on the cliffs of dover and captured 6. I captured stockholm, hongkong, both cities from egypt and 2 out of 3 from france. - How did you play your governance cards, priorities? I went classical republic with maintenance reduction in the wild card slot. For the rest it's +1 production, campus adjacency and extra envoy points. The most important is to stay afloat money wise as I have a substancial army, after that I want to hit 6 envoys on hattusa for it's insane bonus. For religion I have no idea what I am doing so I went work ethics which seems like a good bonus. I picked meeting houses as well because production is good. Might have been a mistake in hindsight as I haven't even built a single shrine yet so I can't even spread my religion or make any use of my bonuses. - What City-States did you meet and which ones did you cultivate to your side? I met stockholm hongkong kumasi and hattusa, I conquered the first 2 and plan the conquer the 3rd, hattusa's bonuses are too good so I have invested all my envoys into it. - Were your neighbors peaceful? France declared a surprise war on me but overall they were very passive. - How were the Barbarians? They didn't cause too mcuh trouble in the first 70 turns or so but now they are everywhere in large quantities, I am barely able to hold them off, most of my money is used to rush buy archers to keep the barbarians away, things should be easier once the continent is conquered and I can bring back the bulk of my army to defend. - Any surprises? Spawning so close to hattusa was a pleasant surprise but overall the game has been mostly on cruise control.