One of the main new features in The Sims 4 is emotions. While you have always wanted to try to make your Sims happy, emotions are very far reaching and really embedded into the game play in The Sims 4. There are still moodlets—small modifiers that your Sims accumulate as they go through life. These are based on the environment, what the Sim is doing, how other Sims are acting, and the results of conversations and interactions. Each of these moodlets is now tied to one of 15 emotions. When added together, these moodlets create a Sim’s emotional state. Now why is this so important? A Sim’s emotion can affect several things. Some skills or careers benefit if the Sim is in a specific emotion. Sims develop skills faster, produce higher quality products, or make more progress at work toward a promotion depending on their emotions. On the other hand, some emotions have a negative effect on these things. Therefore, it is important to always consider not only your Sims’ current emotions, but how you can get them into desired emotions to help them have a better life. For more information on emotions, see Feelings, Lots of Feelings.