I guess after joining in this thread so much, I really ought to do a write-up of my 1858 spaceship masterpiece
Bad Land
I was very pleased with my result given that I had a disastrous early game. I settled 1N (I remember arguing for 1NW in the pre-game discussion; I changed my mind very quickly after I saw all the tundra round there). I then set out to explore, with my mind firmly set on 'science for space race. Science for space race. Do not settle anywhere that won't make a brilliant size-20 science city. Of course, I soon discovered that there was nowhere within any sensible distance of the capital that even remotely answered that description. With hindsight I should've been more flexible - there were some places nearby that would've made reasonable size-10 cities, and that would've been better than nothing at the beginning.
So I ended up rather grumpily settling as best I could some way out, and resolved to go to war on Washington asap, since he did seem to have some cool land. Trouble was the only available iron to the west was in a very unpalatable location. I spent quite a while trying to figure out if I could get a half-decent long term city there and decided I couldn't. So no decent units until catapults. Thus was my plan formed. Beeline to catapults, and attack America with nothing but cats (Thank God he didn't have horsies, I'd have been really stuck if he had).
A Tale of Two Yorks
In the meantime I identified a spot to the South that had food a-plenty and would make an excellent GP farm. So I put York there. The US city of New York was only 3 tiles away, but no matter. New York would be swiftly razed once I had cats. Excellent plan. Except - how was I supposed to know that Washington was only a few turns away from completing Stonehenge in - wait for it New York. Bugger. You can guess the rest. York spent quite a while surrounded by US culture, unable to do anything except produce some food and generally drain my economy. It was almost a relief in 40BC when the inevitable culture-flip happened, despite the embarrassment of losing a city to a culture flip before I'd even hit 0AD. Ouch! (And oh the irony,
York flips because of
New York)
Heres my rather sorry-looking 280BC map (from the replay coz I can no longer open the savegames. Mods for WOTM15 I think). You can see the cultural pressures on York to the South.
Going Rings Around China
Still, after that things went better. Starting in 275AD I rolled over Washingtons best land with my catapult army. Surprising how effective that is, must remember that tactic in future GOTMs.
After the first US war:
After an economy-recovery break I eliminated China completely in a single long war, judging that with such poor quality land everywhere I was going to need the entire continent to stand any chance of enough science for a decent spacerace.
I actually love the map I got to in 1448AD. Looky! Mid war and I now have China completely surrounded.
He hasnt even yet made contact with most of the Civs on the other continent. Aww, bless! (Probably didnt help that he never founded any cities on the outer coast of the continent and so could never sail the oceans. IMO thats a beautiful example of the kind of mistake an experienced human player would never make but an AI can easily do).
Desertification
One thing Im quite proud of in this game coz it was a new trick that hadnt occurred to me before (Im sure others have done it but I cant recall ever reading of it): I was trying to figure out how to get a bunch of cities in the NE of the continent irrigated in the absence of any grass/plains path from any river. A quick worldbuilder test showed that irrigation will go through a city on a desert, even though youre not normally allowed to irrigate desert. So I founded a city on one of the desert tiles mid-East on the continent, the first time Ive ever founded a city for purely irrigation purposes.
On balance Im not sure how much it helped me, given the number of cottages I had to pull down to get the irrigation through, but it made me feel good

.
Lots of Silly Wars
Anyway back to the main game. I worked very hard to keep Mansa (the only other tech-superpower) pleased/friendly to max tech, though it didnt work too well. After about the time of steel, I dont think he ever researched a tech I didnt already know. Useless git. But by the mid 1600s I was building the Apollo program and very happy to be doing so so early, but something went wrong at that point and Im not sure what. Usually I reckon about a century to build a space-ship, but somehow it was fully 200 years (though obviously a bit fewer game-turns) this time before my SS was launched. I made a few mistakes at the end though I doubt they were big enough to explain that difference.
One problem was that with my massive tech lead over everyone except Mansa, I just couldnt resist going to war again and again to maximize my land. I took the jungle-island to the east of the main continent (good because all that grassland eventually gave me some spectacular science cities). Then when America was confined to small islands SE of that, I wiped him out (good for getting rid of the we long to join our own Civ unhappiness in my ex-US cities, but bad coz I now had some pretty dire cities). Its a bit like the American Indians in reverse. I keep pushing America further and further East, but no matter how far East he goes I follow and take his land
Then I declared on Saladin partly motivated by a greedy eye on his gems, but I didnt manage to reach them. Then in my cleverest move, when Mansa declared on the French, I decided to join in. Ysee, France had ivory. I thought the unhappiness from the war for 10-15 turns would be worth the ivory-happiness. Yep, bagged the ivory and ummm next time, someone please remind me that ivory goes obsolete and so doesnt do anything for you at all in the late game

). Of course as a result I was so irritated that I just had to declare on Saladin again. An extra city or three always makes you feel good. But in the end Im sure I can put 10 or so turns lost on my victory down to war-weariness hitting my production. Wasnt a bad map at the end though (well, for me. Arguably not for Washington or Qin):
Still, its the earliest I can ever recall getting an SS victory in a GOTM (other than the unusual marathon one), so me happy. By extrapolation, at this rate Ill eventually get down to a 0AD SS victory