FinalDoomsday
Prince
I just lost my first Glorious-level difficulty game, with "Play to Win" turned on. It was fantastic. I only had two ambitions left, and suddenly 3 out of 4 AIs declared war on me (over the course of 3 turns) because I was close to winning, even though I had been at peace with them the entire game. Literally every Civ was Jewish so we were getting along so great, but turns out religion hates you if you're at war with others of the same religion. Because I was at peace the entire game, I neglected my military and focused entirely on domestic things. After they declared war on me They stormed my cities and I was done.
This reminded me a lot of what made Colonization so fun - that you had this looming gigantic military threat the entire game that you had to gear up to prepare for. And yet, had I properly geared up, my progress would've been a lot slower. That's the exciting kind of trade off that makes a game fun.
To put the final touches on this, there should definitely be some roleplaying scripts/events related to the fact that you are close to winning, so there's some story-based reason for people starting to gang up on you, maybe you're the crown jewel or the envy of the world or something.
Great job!
I think they said the game goes up to the fall of the Western Roman Empire so theres absolutely opportunities for maybe climate change, Huns driving minor factions into your lands and eventually reaching you and internal strife. Probably more of an expansion thing to do properly.