When you’re creating a new household in The Sims 4, you’ll want to set relationships for every new Sim you’re creating. Here’s how to do that.
By default, any Sim you create (unless you go through the genetics tool) will be a ‘household member’. That’s essentially a neutral roommate – they’ll get on well enough, but they don’t have any particular bond yet. It’s handy if you want to shape the relationship yourself (or use a cheat to edit them!) but chances are, you’ll want to define if your Sims 4 household members are related in any way.
Once you’ve created your Sims in the Create a Sim tool, click on the diamond ‘Sim’ icon in the top-left. This will bring up the current selected Sim’s information panel. At the bottom right of the panel, you’ll see a button with a silouhette of two people on it. Click it, and that will bring up the ‘Edit Relationships’ window.
The age of your sim will determine what relationships you can choose. For example, you can’t set a young adult to be the child of another young adult! But you can assign them to be a fiance, sister, brother, husband or wife.
You’ll need to do this for each member of the household, ensuring everyone has the correct relationship. It means when you move your new family into a lot, everyone will know and like each other the right amount, meaning you don’t have to waste time building their relationships.