Auriël's Custom Lifespan
I created these custom lifespan settings because I prefer a much slower aging system, giving my Sims and pets more time to experience every stage of their lives.
This mod replaces the default Normal lifespan durations with my preferred values, allowing you to enjoy family life, relationships, careers, and everyday activities without constantly worrying about aging.
Features
Extended Lifespans: Significantly increases the duration of all human life stages.
Custom Pet Aging: Includes separate lifespan settings for cats, dogs, and horses.
Consistent Aging: Each life stage has its own predefined duration.
Easy Configuration: Simply select the Normal lifespan setting in-game.
No Additional Dependencies: Works as a standalone package without additional scripts.
Human Lifespans
| Life Stage | Sim-Days |
|---|---|
| Newborn | 12 |
| Infant | 38 |
| Toddler | 200 |
| Child | 400 |
| Teen | 300 |
| Young Adult | 900 |
| Adult | 1,500 |
| Elder | 900 |
| Total | 4,250 |
Pet Lifespans
| Life Stage | Cats | Dogs | Horses |
|---|---|---|---|
| Baby | 50 | 50 | 100 |
| Adult | 500 | 400 | 900 |
| Elder | 200 | 150 | 400 |
| Total | 750 | 600 | 1,400 |
How It Works
The mod changes the aging durations associated with the game's Normal lifespan setting.
Open Game Options → Gameplay, enable aging, and select Normal as your Sim Lifespan.
Your Sims and pets will then use the custom durations shown above.
Installation
Extract the ZIP and place the included files in your Sims 4 Mods folder:
Auriels Custom Lifespan.package
In the Menu click on Game Options then Other
Activate Enable Custom Content and Mods
Compatibility
Required DLC:
Cats & Dogs: Required for cat and dog lifespans.
Horse Ranch: Required for horse lifespans.
Other lifespan mods may conflict.
Credits
Created by Auriël 💚
Simple mods. Meaningful improvements.

