Family Tree Editor

By Gemma Peng · Public Beta

Build family connections, create missing relatives, and give your Sims a more detailed family history.

Family Tree Editor adds a phone-based relationship editor to The Sims 4. Choose an existing acquaintance or create a new relative, review any missing family members, and confirm the planned changes.

Features

• Establish direct and extended family connections, including siblings, half-siblings, grandparents, aunts, uncles, nieces, nephews, and cousins.
• Create missing intermediate relatives when a relationship requires additional family members.
• Customize new relatives’ names, gender, and age stage before confirming.
• Work with adoptive, step-family, and in-law relationships.
• View and manage relatives created by the mod, including moving them into the active household.
• Display directional kinship titles in Sim Profiles, calculated from the current family structure.

Kinship titles refresh when relationship information updates or the profile is reopened. Older/younger naming preferences do not change actual ages or birthdays.

Build Extended Families

Create family connections including:

• Parents, children, grandparents, and later generations
• Full siblings and paternal or maternal half-siblings
• Aunts, uncles, nieces, and nephews
• Cousins and cross-generational relatives
• Adoptive, step-family, and in-law relationships

You don’t need to create every generation manually before starting.

Create Missing Relatives Together

Want an existing elderly Sim to become another Sim’s grandmother, but the intermediate parent doesn’t exist?

The mod can prepare that missing parent as part of the same operation. Review the proposed family structure, customize the new relative, and confirm the complete plan.

Generated relatives are real Sims saved in your game, not empty family-tree placeholders. They are initially placed in households without residential lots rather than automatically added to your active household. This does not guarantee that they will never appear as NPCs.

You can find them later under Created Relatives and move them into your active household.

Choose Existing or New Family Members

Use an existing acquaintance or create a new relative.

For new Sims, you can customize their name, gender, and age stage before confirming. Missing intermediate relatives can also be reviewed and customized together.

The existing-Sim picker lists eligible acquaintances known to the current focus Sim—not every stranger in the world.

View Detailed Kinship Titles

See more specific family connections in Sim Profiles, including sibling, half-sibling, aunt, uncle, niece, nephew, cousin, and common in-law titles.

Titles are calculated separately for each direction. A Sim can appear as an aunt from one perspective and a niece from the other.

They are recalculated when relationship information updates or the profile is reopened. Some distant in-law and complex step-family connections currently use broader titles.

Older/younger naming preferences do not change actual ages, birthdays, or aging progress.

Connect Different Households

Build family histories across multiple households using known Sims, provided the planned connections are compatible with their existing families.

Existing relatives can be reused where supported. Conflicting parents or spouses are not forcibly replaced.

Installation

1. Extract the downloaded archive.
2. Place both FamilyTreeEditor.package and FamilyTreeEditor.ts4script in Mods/FamilyTreeEditor.
3. Enable Custom Content and Mods, and Script Mods Allowed, in the game options.
4. Restart the game.

When updating, remove duplicate older copies of both files.

Where to Find It

Phone → Family → Family Tree Editor

Detailed kinship titles appear under:

Relationships → Select a Sim → Open Sim Profile → Relationships

Recommended: Set family relationships through Family Tree Editor in Live Mode rather than in Create a Sim (CAS). Assigning relationships in CAS may generate Unknown parent nodes, which can block later relationship changes in this mod.

Language

Version includes English and Simplified Chinese interfaces, selected automatically based on your game language.

Current Limitations

• Existing parents and spouses are not forcibly replaced.
• Unknown parent nodes can block an operation. The mod does not overwrite or delete these nodes.
• Former-spouse and deceased-spouse history insertion is not supported.
• Newly created Sims are currently limited to Young Adult, Adult, and Elder.
• A full graphical family-tree editor, Tray importing, and detailed appearance customization are not included.
• Some distant in-law and complex step-family connections use broader titles.

家谱关系编辑器

不用手动捏完整个家族，也能让小人拥有真正成立的复杂亲属关系！

原版游戏和 MC 控制中心能够直接编辑的亲属关系比较有限，而部分关系标签类 Mod 虽然能显示称谓，却不会真正修改家谱。因此制作了 Family Tree Editor（家谱关系编辑器）。本 Mod 可以直接建立复杂亲属关系，并自动生成缺失的中间亲属，让关系链在游戏家谱中真实成立。

核心功能

一、直接建立复杂亲属关系

支持直接设置隔代、旁系、同父异母／同母异父兄弟姐妹等亲属关系。

不需要为了设置一个表哥，先把双方父母、祖父母全部捏出来。

二、自动补齐家谱中缺失的亲属

例如，直接将两位小人设定为外婆和外孙女，Mod 会自动补出缺失的母亲节点，建立完整的家谱关系。这些生成的亲属初始只存在于家谱中，不会直接成为世界居民。如果后续剧情需要，也可以将生成的亲属拉入世界，成为真正可以游玩的角色。

三、详细识别跨代、旁系与姻亲称谓

除了建立亲属关系，Mod 的关系面板还可以沿着家族关系链识别更复杂的亲缘联系。不仅能够区分兄弟姐妹，还可以识别更远的跨代亲属，以及亲家母、连襟、妯娌等姻亲称谓。哪怕两位小人之间隔了很多代、经过好几个家族分支，也可能找到他们之间具体的亲属联系。

四、支持跨家庭建立亲属关系

不需要让所有亲属住在一起。不同家庭、不同地段的已有居民，只要亲属位置不存在冲突，就可以通过 Mod 建立家族联系。非常适合多家庭轮流游玩、大家族传承、复杂人物关系和长期剧情档。

打开方式

手机 → 家庭 → 家族关系编辑器

建议进入生活模式后，通过家族关系编辑器设置亲属关系，创建人物时尽量不要在 CAS 中设置。CAS 可能生成 Unknown（未知）父母节点，导致本模组后续设置关系时失败。