Let Friends Age Up
Managing a full household in The Sims 4 can be a chore, especially when several Sims hit a birthday on the same day. The base game forces you to age up each Sim individually, which breaks the flow of your storytelling. The Let Friends Age Up mod solves this by adding a powerful new pie menu to birthday cakes, allowing you to select up to 20 Sims on the lot and age them simultaneously. This is a game-changer for legacy challenges, family reunions, or simply when you want to speed up a crowded community lot.
How the Mod Works: Birthday Cake Pie Menu
Once installed, the mod adds a new interaction called "Age up" to any birthday cake that has candles. When you click on the cake, you will see a submenu with sim pickers for each life stage: Infants, Toddlers, Children, Teens, Young Adults, and Adults. You can then tick the boxes for any Sims currently on the lot, up to a maximum of 20. After confirming your selection, all chosen Sims will blow out the candles and age up together. This eliminates the tedious process of repeating the same animation for each Sim.
Extra Feature: Blow Out Candles Without Aging
A thoughtful addition is the alternative "Blow out candles" interaction. This works exactly like the vanilla game's animation, but it does not trigger an age transition. This is perfect for birthday parties where you want the visual of blowing out candles without actually changing a Sim's age, or for screenshots and storytelling moments. The mod keeps the original interaction intact, so you always have a choice.
Supported Versions and Mod Compatibility
The mod requires the XML Injector Mod to function correctly. This is a common dependency for many advanced The Sims 4 mods, and it ensures that the new pie menu integrates cleanly with the game's UI. The mod is compatible with all recent game patches and expansions, including Growing Together, High School Years, and the base game updates. It does not conflict with other popular mods like MC Command Center or UI Cheats Extension, as it only adds new interactions to existing objects. Always check that your XML Injector is up to date after a game patch to avoid script errors.
Languages and Community Translations
Out of the box, the mod is available in English and German. However, the community has contributed translations for a wide range of languages, including Portuguese, Spanish, Chinese (Traditional and Simplified), Polish, Finnish, Russian, and Danish. This makes Let Friends Age Up for The Sims 4 accessible to a global audience. To switch languages, simply replace the string files in the mod folder with the translated versions provided by the community.
How to Install: Step-by-Step Guide
Installing the mod is straightforward, but you must follow the dependency requirement. Here is a simple guide on how to install the mod correctly:
- Download and install the XML Injector Mod first. Place the
XMLInjector.ts4scriptfile into yourModsfolder. - Next, download the Let Friends Age Up mod files. You will typically get a
.packagefile and possibly a.ts4scriptfile. - Extract the archive and place both files into
Documents > Electronic Arts > The Sims 4 > Mods. - Do not place the files deeper than one subfolder, as the game may not load them correctly.
- Launch the game and go to Game Options > Other. Check the "Enable Custom Content and Mods" box and "Script Mods Allowed".
- Restart the game completely for the mods to load. You should see a notification confirming that the XML Injector is active.
If you want to download Let Friends Age Up, always grab the latest version from the creator's official page or a trusted mod aggregator. The mod is updated regularly to keep pace with game patches.
For players who prefer a centralized management tool, the foxygame.net launcher offers a convenient one-click install for Let Friends Age Up, automatically handling the XML Injector dependency and ensuring version compatibility with your current game build. The launcher's add-on catalog lets you browse and install mods without manually dragging files, and it provides auto-updates so you never miss a critical fix.
Tips for Using the Mod Effectively
When using the mass age-up feature, be mindful of the life stage pickers. If you select a Young Adult and an Adult simultaneously, they will both age up, but the Adult will transition to Elder while the Young Adult becomes an Adult. This is logical, but it can be surprising if you are not paying attention. Also, the mod only works on Sims who are physically on the same lot as the cake. Off-lot Sims will not appear in the picker list, so gather everyone first.
Another useful tip is to use the "no age-up blow" interaction for infants who are about to become toddlers. You can have the whole family gather around the cake, take a screenshot, and then use the standard age-up interaction later. This gives you full control over the narrative pacing of your Sims' lives.
Conclusion
The Let Friends Age Up mod is an essential utility for any player who manages large households or frequently throws birthday parties. It saves time, reduces repetitive clicking, and adds a layer of control that the base game lacks. With its multilingual support and active community, the mod remains reliable and up-to-date. Whether you are a legacy player or just want to age up a group of townies in one go, this mod delivers exactly what it promises. Pair it with the XML Injector and enjoy a smoother, more efficient aging system in The Sims 4.