Help Modding an in-game religion

[LeftHandManGary]

To make a long story short, I'm trying add the divine marriage mechanics to the Yazidi heresy, but not having much luck. I've attempted a few different combinations to no success. My last attempt looked like this:

yazidi = {
graphical_culture = muslimgfx

icon = 3
heresy_icon = 8

color = { 0.2 0.2 0.7 }

crusade_name = JIHAD
scripture_name = THE_BOOK_OF_ILLUMINATION
priest_title = SHEIKH_PRIEST

high_god_name = GOD_SHAYTAN

god_names = {
GOD_THE_PEACOCK_ANGEL GOD_TAWUSE_MELEK GOD_SHAYTAN
}

evil_god_names = {
THE_DARK_SPIRITS
}

parent = sunni
priests_can_marry = yes
can_excommunicate = yes
can_call_crusade = yes
max_wives = 4
matrilineal_marriages = no
divine_blood = yes # Sacred close-kin marriage mechanics
pc_marriage = yes
bs_marriage = yes

landed_kin_prestige_bonus = yes
attacking_same_religion_piety_loss = yes
uses_decadence = yes
uses_jizya_tax = yes
}


Any and all help would be appreciated. Thanks in advance.

 

[Aerotinge]

You need

pc_marrige = yes
bs_marrige = yes

that's the key of incest, and "divine_blood" for "sacred union" bonus.
Dunno why it's not working for you, it is running good in my test mod.

BTW Yazidis do not follow divine marriage, theyre endogamy.
I've made a mod that overhaul Yazidis religion with endogamy, but soon I found it useless...
Because you can not convert to an Yazidis, nor educated. It's totally unplayable in CK2.

 

[LeftHandManGary]

I was more or less trying to make a version of Messalian with one of the various Islamic heresies, and I picked Yazidi because it was fairly unique compared to the other branches of Islam in the game. I had also been considering Qarmatian, but I hate "Rulers at peace lose prestige" as a special rule.

I'd never heard of endogamy before tonight. Looking it up, I wonder if that's why they allowed avunculate marriages for Yazidi despite denying it for the other branches of Islam. And I can see why it'd be quite hard to put that in the game. You'd more or less need to hardcode a number of families to become and remain Yazidi for it to work.

Edit: Strangely, I also can't find Qarmatian at all in the religion file of the game, so I have no clue what is going one.