The Sims 4 Growing Together expansion pack focuses on the deep bonds and shifting dynamics between family members across all life stages. Introduce your Sims to the new "Social Compatibility" system, which determines how well they get along with others based on their personalities and life experiences. The expansion also adds the beautiful neighborhood of San Sequoia and a variety of family-oriented activities like building treehouses and hosting sleepovers. With new milestones and life-changing events, it brings a more realistic and emotional layer to the growth and development of your Sim families.