As the title states, how do you decide how many kids your Sims have? Do you have an absolute maximum due to the number of Sims you can manage at one time or that your computer can handle? Do you...
For my Veronaville playthrough I'm using a formula to decide how many kids a Sim wants, then when they couple up I'm taking the average of both numbers. One half of the formula comes down to personality and the other half is heavily influenced by aspirations.
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For the personality I double the Sim's Outgoing score and then add their Nice score to it.
As for the aspiration part I multiply the value* of the primary aspiration by 1,3, multiply the value* of the secondary aspiration by 0,7 and then add those two up.
I then divide the total personality score by the total aspiration score to get the final number, which I round down.
Or as written in a formula: (Outgoing*2 + Nice) / (Primary Asp*1,3 + Secondary Asp*0,7) = Number of kids
