In Eldritch Horror, how much complexity and extra playing time do expansions add?
I have the Forsaken Lore expansion and haven't yet seen that it increases playtime, but it may increase difficulty (much in the same way that playing against Cthulhu in the base game is a little more challenging than say, any of the other Ancients). I have played the Forsaken Lore expansion now a couple of times and it's just as lengthy as the base game.