Trait is a personality system in The Sims 4, similar to the trait system in The Sims 3. The personality system as a building block of Sims in The Sims 4 is a combination of trait from The Sims 3 and aspiration from The Sims 2. There are three kinds of traits in the game: normal traits, bonus traits, and reward traits. Each kind has different ways to earn them.
As Sims socialize with others, they may reveal their traits from certain interactions. For example, asking a Sim's career will reveal if they have the Ambitious trait, or flirting with a Sim may reveal the Romantic trait. The Observantreward trait allows a Sim to instantly learn the traits of other Sims.
Adult sims created in Create a Sim may have up to three traits, and a bonus trait relating to their chosen aspiration. All traits affect a Sim's behavior and emotions, for example, a Creative sim may randomly become Inspired, while a Sim that Loves Outdoors will sink into a low mood if they stay inside too long.
Unlike The Sims 3, there is no soft limit on the amount of traits an individual Sim can have. Further traits can be earned by either completing aspirations and receiving reward traits, purchasing traits with Satisfaction Points, achieving a high level in the Doctor career, and even dying.
The following lists all traits that appear in the game.
Sims will receive a unique reward trait when fulfilling aspirations. There is no limit on the number of aspirations that can be completed, and thus no limit on the number of aspiration reward traits that can be earned.
Long Lived lets Sims live longer lives, barring any accidents.
Paintbrush Revolutionaries can see the world in a new, inspiring way.
Pipers know an arsenal of songs that have significant power over others.
Poetic Sims can capture life itself in a book, and wield it to bring back someone they've lost.
Masterminds know just the right things to say to cause anger, sadness, and jealousy in their opponents.
Chief of Mischief
Tormentors can sabotage almost anything, be it an object, or another Sim’s best efforts.
By being Vicarious, your Children's skill gains can contribute to your own!
Big Happy Family
Matriarchs/Patriarchs provide skill boosts whenever they are around their children.
I am the Master
I am the Master grants supernatural control. Command Powers used on Vampire Offspring always succeed.
Fresh Chefs always make the highest quality food, and it never spoils!
Potion Masters can mix potent drinks which can sway the drinker's emotions.
Melt Masters have devoted enough of their love and bodies to grilled cheese to truly become Gurus of Gruyere. They can summon Grilled Cheese Sandwiches and Paint Grilled Cheese Paintings.
Shrewd Sims receive a direct deposit each week based on their Household Funds.
Thrifty Sims receive a 10% rebate on all Build Mode purchases made each week. Rebates will be directly applied to Household Funds.
Professorial Sims can write helpful manuals about any skill they're well-versed in.
Handy Sims can instantly Fix and Upgrade any object.
Webmasters get the most out of their computers, unlocking extremely useful ways to use them.
A True Master
A True Master not only excels at Mind Control Powers, they also have greater stores of Vampire Energy to call upon.
Players will never cause other Sims to get jealous, no matter what they do.
Sims with a Companion have special interactions with their spouse that help ease the trials of life.
In the Know
Sims who are In the Know can get a massive discount on market stall purchases if they Haggle with vendors.
Survivalists are happy roughin’ it and like living off the land. Sleeping under the stars or using camping equipment provides lots of enjoyment.
Sims that are Naturalists don't need to fear fire; it won't touch them, and they can extinguish it with ease.
Appraisers can sell collectibles, like Metals, Crystals, Elements, and Fossils to the Simsonian Museum for extra money.
Sims with Angler's Tranquility will find that all of their problems seem to melt away while they are fishing.
Leader of the Pack
Sims that are Natural Leaders will earn Club points much faster, and they will be able to overthrow other leaders with ease.
Hilarious Sims can never go wrong with a joke, and have a few extra-special ones up their sleeve.
Friend of the World
Everyone remembers a Beloved Sim! Their relationships never fade.
Perfect Hosts get a boost to the score of any social event they throw.
Vampires with Regained Humanity seem kinder and safer. Sims are more likely give permission to Drink.
The Sims 4 features numerous hidden traits that are never visible. Many of them are used only for technical purposes, such as marking which secret lots have been visited, assigning walkstyles, or to provide functionality for NPCs. The following hidden traits function similarly to regular traits, but are simply not visible.
These Sims prefer to use their left hand. Left-handed Sims are more skillful with their left hands when performing tasks.
These Sims prefer to use their right hand. Right-handed Sims are more skillful with their right hands when performing tasks.
Alien Sims will have this trait, though it can only be viewed when setting Club membership requirements. There is no in-game description.