Very true, Sleepless.
Looks like the big issues were:
- Choking Gandhi to claim most of the home continent
- Using privateers or open warfare to sink AI ships and prevent them from colonizing the islands
- Colonizing aggressively, getting cities on the AI continent
The first provided a stronger economic base to produce the research needed to get to nukes, plus greatly reducing one of the AIs -- and thus weakening the whole group's research, as Gandhi teched better than any of them. At least in our game.
The second weakened all of the AIs by denying them cities and resources, and also obviously sped up the final conquest by reducing the number of AI cities which needed to be nuked and taken.
The third further boosted the economic base, gained resources, and also contibuted to limiting the AIs. Plus providing existing cities from which to base the conquest of the other continent.
There are plenty of other smaller issues with tech path, great people production, civics, etc. But from my initial scans of other threads, those three look like the big contributors.