The children were the main focus of this demo. My son, Timmy was using the new costume chest to roleplay different characters. As a red dinosaur he can stomp around the house, roaring and destroying doll houses. As a prince, he’s a nobleman who protects the backyard. More clever, however, is the imaginary friend. As a baby, you can be given a doll to play with that you grow attached to. As you get older, it goes from a simple doll to an invisible Sim, who only the child can see. The imaginary friend can play games with you and interact in the real-world in minor ways like as cleaning your room or getting you a snack. But if you click on another Sim at any time, you’ll just see the dishes cleaning themselves or your child having a pillow fight with nobody.
PC Gamer – The Sims 3 Generations preview