Diplomatic Victory T247
Settled in place and was happy to get first contact envoys from Amargh (T2), Antananarivo (T5), Valetta (T11), Vilinius (T11), Mexico City (T14), and Bologne (T21). I was fairly lucky with quests - when the Era advanced to Medieval seven different city states got a religious conversion quest and I also had Religious Unity as one of my belief. Had 15 envoys by T50 and easily had Suzerain of all City States (including two I liberated from Macedonia) by the end of the game.
I decided to conquer Zulu (eliminated T79) and Georgia (eliminated T103) since I needed more territory, and knocked them both out with no resistance. I noticed the Aztecs were conquering the Netherlands, and I thought this would help me since a stronger AI would make the World Era advance faster. So, I left them alone. They ended up capturing three cities, but hilariously Bologne actually burned the Netherlands capital to eliminate them (T118). I conquered most of the other continent and otherwise played a lazy science game avoiding anything that generated excess tourism. Later in the game I killed off Aztec simply because they had the most DF and I was tired of them voting against me.
Got really lucky with two aid requests, but lost four total votes since I was not sure how to predict the AIs behavior. I was at first excited about the Nobel Prize dynamic since I knew this would be a long game, but the first Nobel Prize Competition was Literature, and so was irrelevant to the game. Besides this, it would not have completed until after I won anyway. Since any normal game would end ~100 turns earlier I think they would make the Nobels start earlier - maybe based on Sweden’s progress instead of World Era so at least the player has some chance of seeing them.
Diplomatic Points:
T109: Mahaboudhi Temple (2/20)
T122: Lose both World Congress votes (2/20)
I recall DanQuayle reporting in a past GOTM that the AI usually invested only 1 vote in each issue, with the exception of caring very strongly about the resource ban one and dogpiling the leader on the Victory Point resolution. So, I only invested only a small number of votes and ended up losing one 15 to 13 and the other 6 to 3. I am not sure if this changed with the update, or I just got bad luck and randomly hit two votes that the AI cares a ton about....
T138: Potala Palace (3/20)
T152: Win both World Congress votes (5/20) and win aid request to Hungary by sending 1400g (7/20)
This vote I poured in all my DF for 10+ votes on each issue. The AI only put 1 vote down each though (like I had thought/hoped they would the first time.
T182: Win one World Congress vote, but lose the second (8/20)
I poured all my 2000DF into 14 votes on each issue, and won one but lost the other.
T189: Statue of Liberty (12/20)
T204: Global Warming Mitigation (13/20)
T212: Win both World Congress votes (15/20)
By this stage I had so much more DF than the AIs it did not matter how they voted.
T224: Seasteads (16/20)
T42: Win both World Congress votes (18/20)
T247: Win aid request (gave 10,000 gold, no AI gave more than 900) - (20/20)
The AIs provided no challenge at all on Prince, but I saw that several GOTM players won unintentional Cultural Victories. I actually came very close myself. At one point I had 20/40 tourists and was just about to eliminate Hungary. Suddenly I realized they were probably the leader in culture, and if the next player was far behind I could trip the wire for CV. I declared peace and eventually ended up giving away a bunch of Great Works of Writing and Art, and later even a few cities, just so the AIs would have space to hold the works. I assume gifting cities is OK in non-religious games so I hope this did not break a rule. At the end of the game I was at 32/40 tourism.
Although Diplomatic Victory feels broken to me (you're better off killing most AIs, so it does not feel very "Diplomatic"), I certainly enjoyed playing around with Petra+Nazca lines. This shot was the final turn and the city is slightly below its peak because I bulldozed all my Alcázars to lower tourism and the volcano just happened to erupt on the semi-final turn damaging several mines.
Great People really pile up when you don't want to create any Great Works, are done warring, and have nothing to boost!