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A Perfect Circle: A CK3 Incest Challenge

Come one, come all, to the ultimate CK3 succession crisis!
If you want a real challenge and think CK3 succession is easy, then this is the mod for you!

Fully savegame compatible, install or uninstall at your leisure.

What does the mod do?
You can ONLY marry your dynastic members, no one else. They are barred from marriage menu.
Those who are exempted are of Restricted Marriage faith, have no dynasty/lowborns, and have a 1-person dynasty.

What about those who fall prey to seduction schemes?
Oh, those are quietly terminated. Any dynasty members who gets pregnant with non-dynasty members will be affected. However, if they cheat with each other, well, I see nothing wrong here! Their love cannot be wrong!

What is this place!? I'm scared! T_T
Fear not, for you have the love and devotion of your family, and family is all.... literally!!!!

Why did I make this?
It started as a Targaryen/Valyrian AGoT Incest submod, but I decided to release it for the base game for those who seek the ultimate challenge.

UPDATE - Addressing the barony marriage problem
How CK3 implements baronies is to be as efficient as possible, meaning that if you don't actively marry them from county or above, they will generate a 'random' person to marry. This is unacceptable!
Thus, I have removed the ability for barony holders to marry if they meet the mod's requirement. Yes, this will kill them off, so be mindful that you marry those barons if you need it. If I go down the road of generating new family members for them, it would break immersion and make the challenge far easier.

CK3 is all about dynastic and succession, so this mod funnels your playthrough into an impossible alley.

Your best hope is to get Pure-Blooded, keep it, and try to outrun your inevitable decline into an inbred turnip.
Even if you start with pure-blooded, there's no guarantee you can keep it. Best of luck!