I´m a Kickstarter of Xibalba and recived my copy with the Generals and the 5-8 Player expansion yesterday.
I read the rules but i didn´t find any explanation on how to integrate the 5th+ player in the game. I would just adjust the Paragon goal a little bit and play the normal rules. But the question is: why are there additional dice in the expansion? There seem to be no use for those additional dice?
I recieved an answer from the game creator on the Kickstarter page:
As i thouht there are no additional rules for more player. You simply adjust the needed Paragon as you wish. The additional dice are just so you can easier grab the dice when playing with more players.