Thread for new members to post their Sims 3 game issues (2020-22 version!)

@rapidnitro57 - Oh, I see. That would require mod usage, NRaas MasterController in particular. But in what capacity would you be adding them, though? A family tree connection means there must be a blood, step, or marriage relationship. If you make them a sibling, for example, to an existing sim then that would make them children of their parents. The game's way of handling step siblings is not very sophisticated, to put it mildly.