SonozakiSisters

Twins Update (Preview) (Patreon)

Published:

2025-11-06 10:10:35

Edited:

2026-09-23 19:19:25

Imported:

Tags:

twins_related

Content

05.02.2026 UPDATE: Updated for the 1.121 patch. REMOVE the main module and script and redownload the mod by the link for the 1.121 patch! You should have the 1.2 version for the main mod and the script. You can keep the secrets add-on, it doesn't require the update

05.02.2026 UPDATE: Added the Spanish translation link (Thanks, JA Simmer!)

30.12.2025 UPDATE: Fixed the buff for pretending at school appearing when it shouldn't be. Remove old version and make sure you only have 1.1.2 version in the Mods folder + Added the Chinese Simplified and Traditional translation link (Thanks, MeowCats!)

19.11.2025 UPDATE: Fixed unique buffs appearing on sims being not twins. Remove old version and make sure you only have 1.1.1 version in the Mods folder

Finally I made it! But read about the original mod HERE to understand its behavior.

What's new?

Automatic Elder / Younger Twin statuses and related gameplay

New satisfaction system of being twins with a visible relationship track, affecting the whole twin gameplay experience

More special moments: invent secret language, make up personal handshake, unique moodlets when taking shared photos

More personal interactions: comfort, tease or insult twin with phrases based on twins' personalities

Age specific interactions: share toy for toddlers, support bear phase for children, play mind reading (and actually learn something!) for children and teens

Trying on twin's outfits and comment them 💅

And many more!

With a few enhancements as well ;)

Moodlets for working together on school projects only apply to twins

Old moodlets have been remade with more appropriate icons and text

Some errors caused by secrets while sharing innermost thoughts have been fixed

Cheats are only visible if the target sim is the active one, to prevent misunderstandings

Now, let's get into the details.

More Twin Related Information

Now, all twins receive 'Elder Twin' or 'Younger Twin' status relative to each other at birth! For twins who are already born, the status is applied based on their age progress.

But that's not all! The feature that I worked so hard on is a special relationship track! It shows how satisfied your sim is with having this or that twin.

It's different from friendship. The idea is that you can certainly be friends with your sibling, but you didn't want to be exactly twins. It's often a complicated experience, as twins are constantly compared to each other, percieved as one person, and so on. Or maybe you like the idea of being twins with a sibling, but you don't get along very well. That happens too.

Naturally, things are easier for twins whose relationship tracks are both positive or negative – there are no difficult feelings.

Satisfaction is affected by personality compatibility, which is recalculated when ageing up to Young Adults and after Self Discovery events. Social interactions affect it too, but the unique twins interactions have more weight and a greater variety of outcomes.

Attention! On the first run, the satisfaction status of existing twins may differ from the relationship track score. For example, it may appear as a positive value, but the status is 'Dislikes Having a Twin'. This is just an in-game issue, but don't worry. You can go into CAS and back out again, or switch households – this will update the UI for the relationship. After that, there will be no more UI inconsistencies.

Anyway, you can manually change any status you want. With testingcheats enabled, shift + click on the active sim and select the cheat from the Twins Pie Menu Category.

Elder or Younger?

This status unlocks more gameplay! Toddlers, children and teenagers can argue with each other about who the older twin is. But this feature is only available if they don't already know!

Sims can ask their parents who was born first. Oh, and trust me – they won't be happy to find out if their twin is the elder one!

Satisfaction Matters

Many interactions and outcomes in this mod now depend on the satisfaction score. For example, twins can only share their innermost thoughts if they have a high score, while insulting a twin is only possible if they're angry or their score is low.

Also, starting from infants, sims now automatically react to their twin's mood in certain situations, such as when they are crying or having a emotional meltdown. However, depending on their satisfaction, they may feel sadness or anger.

Appreciate Shared Photos

Twins who take a shared photo will receive the unique moodlet ;)

Share Toys

Clicking on a toy allows a sim to share it with their twin for playing with! They both have fun, develop their creativity and receive unique moodlets.

More Personal

Children and teens can play mind-reading games and learn something new about each other!

They can also comfort a twin in certain situations, tease them or insult them – and it's possible to see what exactly they said. As always in my mods, it considers personalities, skills, preferences and so on ;)

Support Bear Phase

During the phase, twins can support each other and change into bear costumes together ;)

More Secret Interactions

Besides sharing inntermost thoughts, sims can make up their secret handshake and use it after (requires 'Get Together').

If they're creative enough, they can invent and speak their own language!

Try On Outfit

Sim can try their twin's outfit! They or their twin can comment it in different way – from 'You look great, let's share clothes' to 'Your sense of style is self denial'.

Pretend At School

If a satisfaction score is high enough, sim can ask their identical twin to attend school in their place one day. This is very useful if your twin is much cleverer and more skilled. ;D

How it works:

Use the 'Ask Twin to Pretend at School' interaction on the identical twin the day before. This sim will receive a holiday tomorrow. You can either join the twin at school or send them alone — it doesn't matter.

The performance (including the twins' homework progress) that the twin achieves during the school day will be transferred to the sim. Their performance will decrease as if they weren't at school. This could result in a promotion or a demotion for both the sim and the twin.

Keep in mind!

It is only available for EA's grade and high school. It supports 'Go to School V5' by Zerbu, but not any other custom schools (but maybe I add support in the future). Naturally, both sims should be students.

It only affects performance; calls from the school to parents and social connections that the twin makes cannot be transferred. Consider it as parents and classmates being aware of the situation.

If the twin is promoted or demoted, it will be reset (but the sim may still be promoted or demoted after transferring). Because of this, you can see notifications about the twins' grades going up or down, but the information is not relevant.

You can't ask a twin who has already agreed to pretend to do so (may be the case for triplets and more), and a twin who is pretending can't ask someone else about it.

The twin may actually skip school and attend on another day, but you should manually give the sim a holiday then.

Don't manually send the sim to school; their performance will be replaced and it will be meaningless.

If something went wrong or you just changed your mind, shift + click on the twin with testingcheats enabled and use the 'Cancel Pretending at School Request' cheat

...And Many More!

It's just a part of the available interactions. Hope you enjoy this new gameplay ;)

Check compatibility status HERE

Base game compatible – but for some interactions 'Parenthood' / 'Get Together' packs are required.

REQUIRED

Lot51 Core Library

For more secrets – Lumpinou's RPO (M1, M7, M9)

CONFLICTS

None

TRANSLATION

Russian translation by me

Chinese Simplified and Traditional translation link by MeowCats

Spanish translation link by JA Simmer

INSTALLATION

REMOVE ALL PREVIOUS MOD FILES!

Unzip the archive in the Mods folder no deeper than one subfolder

If you want Secrets Add-On, then put the package in the Mods folder. Make sure you installed the main mod.

F.A.Q.

You receive Last Exception right after the game loaded?

If you're game version is 1.121+, you have the old version of this mod. Remove all files and install the newest one (1.2 for now). Older game versions aren't supported anymore, because the genealogy system has been significantly remade.

If you still get LE, there are files of incompatible version somewhere else in your Mods folder. Use 50/50 to find it

No interactions at all?

You didn't install the Lot51 Core Library correctly or you have an outdated version

No specific interactions?

It's only for identical twins but your twins are fraternal

They're not close enough

You should wait to use the interaction again (for twins secrets)

No cheats?

Make sure you enabled testingcheats

You should have appropriate pair of siblings: same parents, same age. FOR IDENTICAL TWINS: SAME GENDER!

No auto assigning?

You didn't install the script correctly or you didn't remove old files