The Sims 4 Seasons introduces dynamic weather and transformative holidays to your Sims’ lives, making every day feel distinct and meaningful. From summer heatwaves to winter blizzards, the environment now reacts to the changing calendar, affecting your Sims' moods and the activities they can enjoy. You can celebrate themed holidays like Harvestfest and Winterfest, or even create your own custom traditions to suit your family’s story. The expansion also adds the Gardening career and a variety of seasonal outfits, ensuring your Sims are always prepared for whatever the sky throws at them. It is an essential "foundational" pack that adds a layer of realism and variety to the entire game.