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Family relationships
Family sitting down
A happy family.

"Family" redirects here. For other uses, see Family (disambiguation).

Family relationships are the bonds between family members. There are special interactions for individual family members beginning with The Sims 2.

The Sims[]

The family relationships in The Sims are very simple. Two Sims are either members of the same family, or they aren't, and all Sims who live in the same house are considered part of the same family. Even when two Sims marry, what makes them part of the same family is that one moves in with the other. The fact the two Sims are married is not recorded.

The parent-child relationship does exist, but is not recorded as such. It only exists while the child remains a child. Using the "Age of Instant" charm[TS:MM] or a third-party program to turn a child into an adult will break the parent-child relationship.

Likewise, sibling relationships are not recorded as such. Children living in the same house are considered to be siblings, but if one or more of them is turned into an adult, that relationship will not persist.

Of course, players can define two adults as parent and child, or as siblings, and play them as such, but the game itself will not define any relationship between them.

The Sims 2[]

The family relationships in The Sims 2 are more complex than in The Sims. Since family trees were a new addition to The Sims 2, aunts, uncles, nieces, nephews, siblings, and cousins now exist.

List of Family Relationships in The Sims 2:

  • Grandparent
  • Grandchild
  • Aunt/Uncle
  • Niece/Nephew
  • Grandaunt/Granduncle
  • Grandniece/Grandnephew
  • Parent
  • Child
  • Sibling
  • Cousin

Life-extending items such as the Elixir of Life and the Cowplant, or resurrection can allow a Sim to live long enough to be a great-grandparent. However, great-grandparents and great-grandchildren who are alive at the same time will not be shown as related in the relationship panel.

Children and younger Sims taken away by the social worker but later adopted by other households will still be known to their old households. However, any traces of their family relationships will be erased except for the memory that a family member was taken away (which makes them ineligible for adoption).

Family Interactions[]

In The Sims 2, Sims have interactions that can only be performed with family members.

  • Encourage: Using this interaction, a Sim can encourage a younger Sim's behavior and gradually change their personality. For example, if an older family member encourages niceness often enough, the younger will eventually be kinder to people.
  • Family Kiss: Two blood-related or unrelated (somebody who has moved in to join the family but has no relations to any of the family members blood-wise (although they could be a pre-existing Sim's love interest)) family members can give each other a family kiss. If a child Sim kisses another family member they will wipe their own lips with their arm afterward. If a Sim has made their spouse furious at them (e.g. from cheating or arguing), the only kiss they can perform is family kiss (if any).
  • Babies: If an infant Sim exists in the family, a related Sim can cuddle and play with them. If an unrelated Sim exists on the lot they cannot perform "cuddle" or "play with". They can only "change diaper", "let [sim name] out" and "get bottle for [sim name]".

The Sims 3[]

The overall family relationships in The Sims 3 are very similar to the ones in The Sims 2. A new addition to the family relationships are in-laws, and step-family members.

In The Sims 3, Sims do not have interactions that can only be performed with family members, with the exception of babies as in The Sims 2.

  • In The Sims 3, family relationships always show up in the relationship bar, but a Sim's relationship with a family member depends solely on their interactions with said family member (no added instant bonus for being related, except when living together there is more time to talk with one another).
  • Also Sims with the Family-Oriented trait do have an easier time teaching toddlers to walk, talk and potty training them. They also have the option to hug, praise and encourage to build skills more often than other Sims.

List of Family Relationships in The Sims 3:

  • Great-Grandparent
  • Great-Grandchild
  • Grandparent
  • Grandchild
  • Aunt/Uncle (Relationships for Grand Aunt/Uncle don't show)
  • Niece/Nephew (Relationships for Grand Niece/Nephew don't show)
  • Parent
  • Child
  • Sibling
  • Cousin (first cousins only)
  • Parent-In-Law
  • Child-In-Law
  • Sibling-In-Law
  • Step-Parent
  • Step-Child
  • Step-Sibling
  • Half-Sibling
  • Descendant (Into The Future expansion pack only) - not shown in the base game's family tree and list of descendants can change depending on what is happening to a Sim's 'present' life

The Sims 4[]

Relationships in The Sims 4 function similarly to those in The Sims 3. The Genealogy tree wasn't present in the base game, but was re-added in Patch 12

List of family relations in The Sims 4[]

  • Ancestor
  • Great-Grandparent
  • Great-Grandchild
  • Grandparent
  • Grandchild
  • Half-Sibling
  • Aunt/Uncle (the siblings-in-law of a Sim's parents are not counted)
  • Niece/Nephew
  • Parent
  • Child
  • Sibling
  • Cousin (first cousins only)
  • Step-Parent
  • Step-Child
  • Step-Sibling
  • Descendant

The Sims 4: Parenthood Relationship Types[]

Upon aging up to young adult, Sims and their family members receive relationship types based on their friendship levels and, in the the case of parents/guardians, the types of Parenting actions players chose (or didn't chose) to discipline the child misbehaving.

Relationship Types for parent/child relationships
Parenting Method

(Parent /

Child)

Friendship Level
Negative Neutral Good Best
Relaxed Unhelpful Parent Parented Passively Provided Happy Childhood Mommy/Daddy Dearest
Unhappy Child Passive Parent Happy Childhood Mommy/Daddy's Girl/Boy
Authoritative Punishing Parent Commanding Presence Grateful Guide Oh Captain, My Captain
Repressed Child Obedient Child Grateful Child Respected Heir
Relationship types for grandparents/grandchildren
Friendship Level
Negative Neutral Good
Grandparent The Grumps Plain Ol' Gran/Gramps World's Best Grandma/-pa
Grandchild Grumpchild Grandkiddy The Best Lil' Boo
Relationship types for siblings
Main article: Sibling Rivalry
Friendship Level
Negative Neutral Good
Ally Childhood Enemies Childhood Buds Super Siblings
Rival Childhood Tormentor Family Frenemies Thick As Theives
This section is in need of additional information. You can help The Sims Wiki by expanding this section.

The Sims 4: Growing Together Family Dynamics[]

Family Dynamics are introduced in The Sims 4: Growing Together, and they offer a new way for Sims to autonomously interact with family members differently based on the type of dynamic they have.

Icon Family Dynamic Description Pack
TS4 Family Dynamic Close
Close Close family members are tight-knit and have a very strong relationship. These Sims will naturally gravitate towards each other, and develop strong positive sentiments more easily when spending time together! When socializing, they will share Deep Thoughts with each other more often. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Distant
Distant Sims with a Distant family dynamic tend to be more reserved when around each other, and won't make particularly frequent contact when apart. Even when in the same household, they won't go out of their way to interact or spend time together. If they do have to speak, they'll both naturally lean towards Small Talk. They also have a higher chance of forming Bitter sentiments towards each other. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Supportive
Supportive When Sims have a Supportive family dynamic, the older Sim often provides the younger Sim with emotional support and reassurance, while serving as a good role model for the younger Sim. When socializing, both Sims will actively seek to provide Affection and Compliments to each other, the older Sim will actively seek to console or cheer up the younger Sim, and the younger Sim feels comfortable venting their Complaints or asking for help a bit more. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Permissive
Permissive Sims with a Permissive family dynamic tend to let things slide when the younger Sim gets into a bit of trouble. The older Sim will often shower the younger Sim in Affection and Compliments, while the younger Sim will tend to be more demanding. They're more likely to form Adoring sentiments towards each other. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Difficult
Difficult When Sims have a Difficult family dynamic, they simply don't get along like most other family members. When socializing, they will usually lean toward Complaints, or even Mean interactions. They will also be more likely to form Furious sentiments towards each other. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Strict
Strict When Sims have a Strict family dynamic, the younger Sim in the relationship respects the authority of the older Sim. The younger Sim often meets the high expectations set for them, though they often feel stressed around the older Sim. When socializing, the older Sim will often demand more of the younger Sim, and the younger Sim will usually play it safe with Small Talk. &EP13
TS4 EP13 Growing Together Icon
TS4 Family Dynamic Jokesters
Jokesters Sims with the Jokesters family dynamic are often cracking jokes with one another, and really know how to make each other laugh! When socializing, they'll often naturally lean toward Funny interactions, especially Jokes. They might even get up to some Mischief together! They're more likely to form Close or Hurt sentiments towards each other. &EP13
TS4 EP13 Growing Together Icon


Conflicts in family titles[]

At times, Sims who do not stay loyal to their spouse or commit somewhat incestuous acts by marrying relatives often create conflicts when it comes to labeling family relationships. Below are some of the examples:

  • If a man has kids with two women who happen to be sisters, his two children will be both half-siblings and first cousins. In real life, aforementioned children in this situation would be labeled "three-quarter siblings", but that kind of serious coding would be too deep and potentially affect other things.
  • Because The Sims 3 only recognizes the first cousins (the children of a Sim's parent's sibling) and is only considered an aunt/uncle if he/she is the brother/sister of the Sim's parent, it is therefore possible for a Sim to marry their parents' first cousins. The Sim's parent will originally see their cousin as "Cousin" but will see them as "Daughter/Son-In-Law", regardless of their age.
  • Excessively adulterous Sims can have as many children as they want. Because they are only related through one parent, half-siblings can marry their half-siblings' other parent. This will consider them as both half-sibling and step-parent. A step-child is only labeled as one if one of his/her parents marries another spouse. Therefore, if his/her biological parent dies, he/she can opt to marry their former-step parent and have children with him/her. If they have children, their child will be the half-sibling/nephew/niece of any child the former-step parent and his/her former spouse have.
  • Uncommitted male and female Sims have a child but the female Sim has another child with the male Sim's son and subsequently marries him. The male's Sim son is the half-brother/step-father of the first child while the second child is the half-sibling/niece/nephew of the first child.
  • If two female Sims marry each other's fathers, they will be recognized as each other's step-mother, and the husbands as father-in-law to each other. Likewise, their children recognize each other as their aunt/uncle, although they recognize each other as niece/nephew in The Sims 4.
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