I just cant get any nation to join my alliance after the fourth nation. I have +200 relations and they refuse to join. If I reload and pick that nation as my fourth, then they will join, but the fifth nation that I choose always refuses. Even if the fifth nation is my vassal, with +200 relations, they still refuse to join my alliance. I'm doing this with numerous reloads, trying to figure out what is going on.
It seems to be easiest to start the alliance with the least likely member. Someone with a +0 relationship works. Then go for the member with the +90. Then pick up the all the guys with the +200 relationships.
I have about decided that the larger the alliance becomes the less chance there is of getting any new members, but that is just a guess. I was hoping that someone could shed some light on this. Pretty soon I'm going to give up on this little 'test' and just continue my game.
--Avenger