Yes, with double gold, early tech targets should be given serious thought. That kind of eluded me and I'm pretty sure I didn't give enough thought to it (was sort of just "checking" the map).
Tech target =/= beeline, though. CS is definitely a stake but so are many other techs like Calendar, Currency, CoL.
I think it starts with barb defense. I believe CPK went for an early fogbust strategy with 6 warriors. No Hunting speeds up his path to Priesthood.
I definitely want skirmishers and that might mean Hunting before Animal Husbandry for the discount.
I have some qualms with the fogbust strat. I think it delays expansion (worker/settler) and the last time I did fogbust the frontline, I seem to recall an AI stole my spot. Effectively, I fogbusted for them (and probably paid the cost in unit upkeep !). Having access to a strong unit like the skirmisher lets you fight where it matters. Finally, culture from cities make a very efficient way to secure land against barbarians. Paying city upkeep is far better than paying unit upkeep.
That said, I agree with you that Oracle -> CoL looks very strong (SPI leader helps).
Other moves include Writing -> Alphabet. The earliest Alphabet leads to the earliest Iron Working, which is very important to clear the jungle tiles. I can see an Alpha
beeline being the strongest opening. I still have reservations about survivability, in that case (going AH -> Writing -> Alpha and no Skirmishers). The Alpha beeline is a 20-25 turns investment
without Bronze Working (size 4 Timbuktu does 13H per turn towards settlers/workers ; it's fine but not great). So, just like Oracle -> CoL, it puts you behind like 1 settler + 1 worker versus a REx. However, in both cases, you're then a full era ahead and it should translate extremely favourably into the Civil Service date.
My first thoughts about this map were : can we break 500
by 1 AD ? It is that good, right ?
In that regard, I think I agree with your assessment that an early invasion is not necessary. This is Hemispheres. Astronomy plays a huge role and I'd be willing to accelerate the tech pace as much as possible in order to land the earliest Astronomy.
So, while an early invasion could speed up Player, I do not believe it would accelerate Global Tech Pace. Losing a trade partner hurts ; said trade partner is also a candidate for building wonders (better on our side than theirs). I think the map is big enough that a standard REx could be best. From my first 50 turns, I can see RExing to 15 cities.
Once Astro date is secured, it doesn't matter so much anymore if we start losing neighbours.
With that in mind, an early Philosophy is also desirable, allowing to bulb through both of Astronomy
and Education. Surely, we can trade for the measly techs such as Metal Casting & co.
Tracking back to the early game, building the Pyramids is also a very strong option, if the game should be so
centric. It shouldn't prevent us to cottage spam and run Emancipation at some point but the Mids are a long-lasting and significant bonus if Caste and +10 food cities are involved.
Tracking back to an invasion vs peaceful play, there is always a third option :
Now,
harrassing a neighbour early on and stealing 15 workers, that would be a different thing. Stealing workers is a lot cheaper than capturing cities and brings far greater results when you can expand on such rich land. I do not know that this is reasonable play, though. This is not a Pangaea with max number of teams.
Skirmishers - Alphabet - Iron Working - Oracle - Code of Laws - Pyramids - REx - Astronomy
I think those are all very relevant keywords but it's unlikely we can have them all. Alphabet - Iron Working - Pyramids could be compatible.
Anyway, I went AH, Bronze, Hunting, Archery, Pottery, Writing. Surely, there is something to do better than that. I didn't really think of it at the time.
If I don't want to replay turns, I could still follow with Masonry, I suppose, and have a very low cost on failure.
ps : I read your 2nd spoiler (and wisely chose to ignore it, obv
), I hope it won't deter you from having another go.
Please, tell how you manage the barbs. I can see so much dying involved in an Alpha beeline but I want to clear those jungle tiles just as badly. That beeline is well worth losing 1 city spot to Neighbour.