Hidden traits become available to Sims in specific careers, life states, or in some cases the children of a Sim with the hidden trait.
The Sims 3Edit
These traits are hidden but otherwise function similar to the standard traits. These hidden traits are often found in NPCs and Sims who reach certain career levels. Sims with these traits have a 50% chance to pass them onto their offspring.
|Burglar||Burglars must perfect their sneaking skills to properly liberate imprisoned items from the homes of neighbors. Burglars like to keep the skill in the family, so their children are able to sneak out like a pro at birth.||Found in burglar NPCs and Sims who reach level 7 of the Criminal career in Thief branch. Sims with this trait can "Sneak" instead of walking or running.|
|Can Apprehend Burglar||Police officers spend years learning how to best the most clever burglars. Luckily for their children, genetics helps [sic] them stop burglars without years of tedious training.||Found in police officer NPCs and Sims who reach level 3 of the Law Enforcement career. Sims with this trait can fight any burglars on home lot. It also slightly increases the chance of a Sim winning a fight, but only if the Sim with this hidden trait initiated the "Fight!" interaction.|
|Can Salute||Children of high-ranking military officials know enough about the military's rules and regulations to snap off a smart salute when they want.||Found in Sims who reach level 4 of the Military career. Sims who graduate from Fort Starch Military School also receive this trait. The salute learned from completing level 2 Scouting can only be used in childhood and does not activate this trait.|
|Immune to Fire||Fire Fighters are able to survive countless fires; not least because of their natural immunity to fire. It's a trait that they pass on to their children.||Found in firefighters, Sims working in the Firefighter profession, Bonehilda, and Genies. Sims with this trait cannot be killed by fire, but can still be singed. They also put out fires much faster than normal, and will autonomously put out fires - even if they lack the Daredevil or Brave traits[confirmation needed].|
|Makes No Messes||The descendants of maids have cleanliness imprinted on their genetic code so they never leave anything dirty.||Found in maids and resort maintenance workers. Sims with this trait never create mess, similar to an attribute of the Neat trait.|
|Pizza Appreciator||Pizza delivery folks develop a love of pizza that's deeper than the thickest crust. Their children share a similar fanaticism for pizza, which makes every bite of hot pizza amazing.||Found in pizza deliverers. Eating pizza grants Sims with this trait the Amazing Meal moodlet.|
|Pyromaniac||You can only get this trait in a Sim who is the offspring of a firefighter, or genie Sim. The trait allows them to set fire to objects of their choice, and they get positive moodlets for doing so!||Found only in the children of a firefighter or Genie. Pyromaniacs are able to transmogrify any fruit into flame fruit, start fires for a short time without destroying objects and can survive for up to three hours while on fire. When they are on fire their moodlet will be positive instead of negative. Eating Flame Fruit will recover some Energy.|
|Rocker||Sims with this trait will get a natural feeling of rock stardom.||Received by Sims who reach level 7 of Music career in the Rock branch. Sims with this hidden trait will occasionally perform some unique animations, especially when music is playing.|
|Asian Culture||Found in Sims from Shang Simla. Sims with this trait will use chopsticks when eating, sing Chinese songs autonomously and bow when greeting other Sims. They will also use Chinese-themed idle animations.|
|Egyptian Culture||Found in Sims from Al Simhara. Sims with this trait will sing Egyptian songs autonomously. They will also use Egyptian-themed idle animations.|
|French Culture||Found in Sims from Champs Les Sims. Sims with this trait will sing French songs autonomously and greet other Sims with a dual-cheek kiss (known as La bise.). They will also use French-themed idle animations and receive discounts when visiting France.|
|Private Eye||Found in Sims who have reached level 7 of the Investigator profession. Sims with this trait are able to sneak instead of walk and can bribe or beat up other sims to Convince them during opportunities.|
|Future Sim||Become the Sim of the Future, today! Receive an upgraded phone and fit in better while in Oasis Landing.||Found in Sims and Plumbots from Oasis Landing. Sims with this trait receive a Holophone and are automatically Level 10 in the advanced technology skill. A near-identical trait can also be received by Sims who purchase the Future Sim Lifetime Reward.|
These traits are assigned to Sims by the game for technical purposes and are not supposed to represent proper traits. Many of these hidden traits do not feature icons.
|Mummy||Found in Sims who are mummies.|
|SimBot||Found in Sims who are SimBots.|
|Vampire||Found in Sims who are Vampires. This trait allows them to "Show off Teeth"|
|Imaginary Friend||Found in Sims who are or were previously Imaginary Friends.|
|Unicorn||Found in Unicorns.|
|Genie||Found in Sims who are Genies.|
|Wished for World Peace||Found in Sims who have wished for World Peace from a Genie and allows them to talk about "World Peace" with other Sims. This trait is inheritable by the Sim's offspring.|
|Wished for World Misery||Found in Sims who have wished for World Misery from a Genie and allows them to talk about "World Misery" with other Sims. This trait is inheritable by the Sim's offspring.|
|Wished for Long Life||Found in Sims who have wished for Long Life from a Genie and will double the length of every life stage. This trait is inheritable by the Sim's offspring.|
|Wished for Beauty||Found in Sims who have wished for Beauty from a Genie. This trait is inheritable by the Sim's offspring.|
|Wished for Large Family||Found in Sims who have wished for a Large Family from a Genie. Sims with this trait will receive "Feeling Fertile" moodlet that results in the birth of triplets if the Sim tries for baby. This trait is temporary and is removed after the Sim tries for baby.|
|Wished for Happiness||Found in Sims who have wished for Happiness from a Genie. Sims with this trait will get the "Eternal Joy" moodlet indefinitely. This trait is inheritable by the Sim's offspring.|
|Ghost||Found in Sims who are Ghosts. The purpose of this trait is to attract Ghosts to Supernatural Hangouts|
|Spellcasting||Found in Sims who are Witches. This trait will unlock the "Conjure Apple" or "Poisoned Apple" (if Sim is Evil) interactions as well as allow them to discuss "Whiz on Magic", "Brag about Broom Riding" and "Enthuse about Magic" in conversation.|
|Lycanthropy Human||Found in Sims who are Werewolves. This trait will make the Sim behave as a Werewolf and unlock the "Joke about Shedding" and "Show Off Teeth" interactions. This trait alone does not allow a Sim to transform into a Werewolf.|
|Lycanthropy Werewolf||Found in Sims who are Werewolves.|
|Fairy||Found in Sims who are Faries.|
|PlantSim||Found in Sims who are PlantSims.|
|Junior Mascot||Found in Sims who are Junior Mascots. Sims with this trait are about to change into the mascot costume and do mascot dances.|
|Influence Nerd||Received by Sims as they gain influence in Nerd social group. Nerd interactions and activities are still limited to the influence level a Sim has, but having this trait will make Sims more likely to do nerd activities.|
|Influence Rebel||Received by Sims as they gain influence in Rebel social group. Rebel interactions and activities are still limited to the influence level a Sim has, but having this trait will make Sims more likely to do rebel activities.|
|Influence Jock||Received by Sims as they gain influence in Jock social group. Jock interactions and activities are still limited to the influence level a Sim has, but having this trait will make Sims more likely to do jock activities.|
|There and Back Again||Temporarily assigned to Sims who "Rant about Death" using the megaphone. The trait grants the "There and Back Again" moodlet. If the Sim rants about death again while possessing this trait, they will die by ranting.|
|Advanced Art Training||Earned by Sims who complete the "Advanced Art Training" opportunity acquired through working in the Art Appraiser career. Sims with this trait are able to paint paintings of any skill level (0 to 9), instead of paintings appropriate only to their Painting skill level.|
|Advanced Art Training Brilliant||Earned by Sims who complete the "Advanced Art Training: Brilliant" opportunity acquired through working in the Art Appraiser career. Sims with this trait are able to create Brilliant quality paintings at will.|
|Advanced Art Training Masterpiece||Earned by Sims who complete the "Advanced Art Training: Masterpiece" opportunity acquired through working in the Art Appraiser career. Sims with this trait are able to create Masterpiece quality paintings at will.|
|Mermaid||Found in Sims who are Mermaids.|
|Kraken Cooldown Trait||Temporarily assigned to Sims after they successfully summon the Kraken if they have Friend of the Kraken lifetime reward. The trait functions as a cooldown for the Sim to be able to summon the Kraken again.|
|DescendantHiddenTrait||Found in Sims who are future descendants of the active household.|
|ServoBot||Found in Plumbots.|
|HoverBot||Found in Plumbots who hover and affects their walkstyle.|
|BipedBot||Found in Plumbots who move using legs and affects their walkstyle.|
|RobotModeOnHiddenTrait||Found in Plumbots.|
|BotHappyModeHiddenTrait||Found in Plumbots.|
|BotSadModeHiddenTrait||Found in Plumbots.|
|BotAngryModeHiddenTrait||Found in Plumbots.|
|TimeTravellerHiddenTrait||Found in Emit Relevart.|
|Wonderland Sim||Found in Sims who live in the Utopia version of Oasis Landing.|
|Stinky Sim||Found in Sims who live in the Dystopia version of Oasis Landing.|
- If a Sim in a house has already bought the Fireproof Homestead lifetime reward, a pyromaniac Sim will not be able to set a fire on that house.
- Despite the fact that pyromaniac's fire does not harm anything, it will still trigger the fire alarms if there are any nearby, summoning the firefighter and leading to a fine.
- If a Sim has the good trait and the secret private eye trait, the Sim won't have the option to beat up other Sims for information.
- The ability to sneak with the secret private eye trait is only available for young adults and older.
- With the secret can apprehend burglar trait, if the Sim has the coward or good trait, they are unwilling to fight burglars.
- Even though a Sim has the immune to fire hidden trait, they can still be caught on fire from inventing, making metal sculpture, taking an experimental treatment from the Science career, or from a fire trap. They will get the "Singed" moodlet, but they won't die if they catch fire again.
- Sims can get the unicorn trait by using a 3rd party mod.
- Using 3rd party mods or cheats to simply add the hidden traits for various occults does not properly apply occult status and will cause problems, unless the trait is "PlantSim".
- If using a mod and selecting the Rocker trait in Create A Sim, an animation will be played, unlike the other hidden traits. However, there is no description.
The Sims 4Edit
The Sims 4 features some hidden traits that are never visible. Many of them are used only for technical purposes, such as marking visited secret lots,[TS4:SD] completed first time actions, or to provide functionality for NPCs. The following hidden traits function similarly to regular traits, but are simply not visible.
|Left-Handed||These Sims prefer to use their left hand. Left-handed Sims are more skillful with their left hands when performing tasks.|
|Right-Handed||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 editing an alien in CAS and setting club membership requirements. There is no in-game description.|
|Expert Repair||Sim must be level 8 in the Scientist career. This trait has no name, description, or icon, and is silently granted to Sims. It increases the speed at which they can repair objects.|
|Vampire||Vampire Sims will have this trait, though it can only be viewed when editing a vampire in CAS and setting club membership requirements. There is no in-game description.|