Ah, but what if the working mod is the Netherlands, as I plan it to be?Mostly depends what is in the final game and what isn't since we haven't seen the final version yet.
But for certain a working mod that adds a new civilization, just to see what files are needed or have to be changed for that, so I can make my own and add the Netherlands to the game.
I agree. This could also be considered a 'game improvement' but we've seen in the past that the final interface from the std Civ game gave only 'mediocre' info. In Civ IV there were some great MOD's that really improved the way we could get information (cities, troops locations, etc), so I guess in Civ VI this could also been needed.For me an user interface mod seems to be most important.
Definitely IGE, that is a must to creating some interesting custom scenarios, for example; extremely strong city states or making only your Capital powerful VS hardest difficulty AI.IGE for Civ 6 is the most important mod in my view.