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Admiral_Obvious

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Imprison her and put her under house arrest.

Nobody can cheat with her that way, and you get to keep all those juicy state stats.
 

Dragatus

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Dragatus

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I don't think positive opinion has an effect either. What does have an effect is if your wife is also your lover. That's because both your wives and your lovers get a check to become pregnant so a wife who is also a lover gets two checks.
 

Chlodio

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I think high opinion has a positive effect on impregnation chance. Negative just makes it less likely than positive.

But what is the exact math? Opinion ranges from -100 to 100. I'd think it's calculated by multiplying base fertility with mutual opinion, thus it might be something like this:

0 =100%
-100 = 0%
100 = 200%

Such odd design decision. They didn't bother reducing fertility with age, but still did this, despite there being several records of couples who hated each other having multiple children.
 

vukica

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But what is the exact math? Opinion ranges from -100 to 100. I'd think it's calculated by multiplying base fertility with mutual opinion, thus it might be something like this:

0 =100%
-100 = 0%
100 = 200%

Such odd design decision. They didn't bother reducing fertility with age, but still did this, despite there being several records of couples who hated each other having multiple children.

Again, I don't think negative opinion has negative effect. AI is designed to have 2 or 3 children on average. However, I think that positive opinion will raise that number slightly.
Not really sure if that is true though, dev would have to verify it.

EDIT:
There are these two defines:
BASE_NR_OF_CHILDREN_PER_COUPLE = 2,
EXTRA_NR_OF_CHILDREN_FOR_PLAYERS = 2,

However, I think these are the only opinion related things that might have impact:
NOT_SPOUSE_FERTILITY_MULT = 0.50, -- Applied to fertility when two lovers are not married
MARRIED_LOVERS_FERTILITY_MULT = 1.5, -- Applied to fertility when lovers are married

So yeah. Opinion has no effect on fertility, unless opinion is high enough to make two characters to become lovers.
 
Last edited:

Masternachos

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Angry sex exists in CK2 too!?
Is there any other kind?

I think I saw this referred to as "The Island of Awesome" on a chart once. Probably the polar opposite of platonic friendship.
 

Dragatus

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I don't quite see why you'd call it "The Island of Awesome", but it certainly is the opposite of a Platonic relationship.
 

faiuwle

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But what is the exact math? Opinion ranges from -100 to 100. I'd think it's calculated by multiplying base fertility with mutual opinion, thus it might be something like this:

0 =100%
-100 = 0%
100 = 200%

Such odd design decision. They didn't bother reducing fertility with age, but still did this, despite there being several records of couples who hated each other having multiple children.

There's no evidence that they did this aside from some baseless speculation, and Meneth has confirmed on reddit that fertility does decrease linearly with age, even though that's not biologically accurate.