One of the most pervasive issues in CIV 6 for me is when I have effectively won, but have to continue on for 2-3 more eras before I can actually meet the win conditions. Essentially the tension is gone and therefore the game becomes an uninteresting grind. If there is literally no chance of an opposing Civ catching up, I lose interest. There have been many uncompleted games due to this issue. Most of my plays have been on King, but I just recently started winning on Emperor difficulty, perhaps it's different at higher difficulties? Emperor, was harder at first, but had the same tipping point as King. Just seems that I reach a point where snowballing occurs. Not entirely sure what a good fix is. Even emergencies, which are supposed to cap snowballers, often end up just fueling my snowball more as they will often fail against me. Edit: I'd like to add that this is the reason Religious Victory is my go-to. Domination becomes a slog of large numbers of cumbersome units, and there's a slowdown in late medieval (once AI has strong walls and encampments everywhere) until I get sufficient modern artillery. Culture/Science both take until very late game (information era) to achieve. RV takes relatively few units who have good movement, is often achieved before industrial era, has a similarly aggressive feel to domination victory without all the negatives (war weariness, warmongering, can't trade with the person you are at war with, more cities to manage, etc).