This applies to the real humankind as well, but rn I'm venting about the game
My 3rd play-through, each time I had to just give up because bugs just pile up. Can't make peace, can't make war, this last time the game told me my civilization had fallen when an AI captured the last city of another AI...
Weird. I tried searching to see why there weren't enough oil deposits in my game to do the end-game stuff and found threads about how they don't scale by size and there isn't a guaranteed minimum spawn for end-game resources.
(Although I did eventually figure out that I did in fact have 3 oil spawns on my map, I just missed one in my ally's territory while controlling the other two. Naturally I went to war and nuked them to get the oil, since they were pissed off and wouldn't trade it to me over some demand or another.)