Instead, it changes how they would react to their environment, making Sims appear more human, less AI. They determine a Sim's behaviors, abilities, and their wishes, including their Lifetime Wishes.
The traits also appear in The Sims Medieval this time, traits are adapted to the Medieval period. Additionally, the Meaningful Stories Mod doesn't only combine two mods together. Traits are the building blocks of a personality assigned to Sims in The Sims 3, replacing the previous system of personality points. This allows Sims to truly be happy, rather than feeling ecstatic for nothing. True Happiness, on the other hand, will only allow Sims to be in a happy state only if something happy actually happens in the game, such as meeting a crush or eating something good. This makes the reactions of sims a little bit robotic, which is what the Emotional Enertia mod brings to the table. For example, a Sim who is feeling sad can just head down to a part of the house that is well-decorated to instantly change their mood from sad to ecstatic. In The Sims 4, a Sim's mood may change at the drop of a hat depending on the environment they're in. In this mod, Emotional Enertia has been reworked to allow Sims to have a more natural mood change rather than the robotic one that the game offers by default. The Meaningful Stories mod is a mod pack that combines the Emotional Enertia Mod and the True Happiness Mod.