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inZOI Life Stages Explained: Aging, Lifespans, and Unlocks

Embark on the journey of life with your Zois in inZOI! From the first moments as a Newborn to the wisdom of a Senior, each life stage brings unique changes, challenges, and opportunities. Understanding these stages is key to guiding your Zois through their virtual lives.

This guide details all nine life stages in inZOI, their durations, appearance changes, and the gameplay features unlocked along the way.

List of All Life Stages in inZOI

Zois progress through nine distinct life stages. While you can start a new game with Zois from Child to Senior, the earliest stages (Newborn, Toddler) and the transitional Adolescent stage are experienced through gameplay as your Zois age.

Age GroupMale PictureFemale PictureSelectable in Create-a-Zoi?
Newborn*Male NewbornFemale NewbornNo
Toddler*--No
ChildMale ChildFemale ChildYes
TeenagerMale TeenagerFemale TeenagerYes
Adolescent*-Female TeenagerNo
Young AdultMale Young AdultFemale Young AdultYes
AdultMale AdultFemale AdultYes
Middle-AgedMiddle-Aged MaleMiddle-Aged FemaleYes
SeniorMale SeniorFemale SeniorYes

*Not available when creating a Zoi.

Appearance Changes Through Life Stages

As Zois age, their appearance naturally changes. These changes are specific to each age group and cannot be customized within that stage (e.g., you cannot make a Young Adult look like a Senior). Key visual differences include:

  • Height: Zois grow taller as they age from Child to Young Adult. Height remains relatively consistent through adulthood and may slightly decrease in the Senior stage.
  • Posture: Posture evolves, becoming more upright into adulthood and potentially slightly stooped in the Senior stage.
  • Wrinkles & Hair: Visible signs of aging like wrinkles appear and deepen in the Middle-Aged and Senior stages. Hair may start showing gray or white strands in these later stages.

Lifespan for Each Age Group

Each life stage has a fixed duration in inZOI, measured in in-game days. Zois will automatically transition to the next stage once the duration is complete.

Age GroupLifespan (In-Game Days)Estimated Real-Life Age Range
Newborn1 day0-1 years
Toddler2 days1-3 years
Child7 days4-12 years
Adolescent5 days13-15 years
Teenager4 days16-19 years
Young Adult10 days20-29 years
Adult20 days30-49 years
Middle-Aged16 days50-64 years
Senior*Up to 35 days65+ years

*Seniors can live up to a maximum of 35 days in this stage, but there's a high chance they may pass away from old age naturally before reaching the maximum duration.

The total default lifespan appears to be around 100 in-game days. Currently, there's no in-game way to track the exact number of days remaining in a Zoi's current life stage.

Managing Aging in inZOI

Automatic Aging

By default, Zois age automatically according to the lifespans listed above.

How to Disable Aging in inZOI

If you prefer your Zois (or the entire city) to stay at their current age indefinitely, you can disable aging:

  1. Open the Options menu (Esc key).
  2. Navigate to the Simulation tab.
  3. Find the Aging (My Zois) and Aging (Other Zois) settings.
  4. Toggle them to Disable as desired. You can disable aging for just your household, just the townies, or both.

Disable Aging in Game Options

Speeding Up Aging

While you can't instantly age up a Zoi with a birthday cake (like in some other life sims), you can make time pass faster:

  • Game Speed: Use the playback speed controls (0, 1, 2, 3, 4 keys) at the bottom-left to fast-forward time. Be mindful of Zoi needs when playing at high speeds.
  • Length of Day: In the Options > Simulation menu, you can adjust the Length of Day. The default is 96 real-life minutes per in-game day. Shortening this (e.g., to 48 minutes) will make in-game days pass faster in real time, thus speeding up the aging process relative to real-world playtime.

Age Group Unlocks: What Changes with Age?

Different life stages unlock new gameplay features, interactions, and opportunities for your Zois.

Age GroupUnlocked Features & AbilitiesLimitations & Restrictions
Newborn・ Assignable Traits
・ Forms initial Family Relationships
・ Basic Friendship building
・ Completely dependent on caregivers
・ Cannot move independently
・ Limited to basic needs interactions
・ Can only build friendships with caregivers
Toddler・ Basic Skills learning
・ Movement abilities
・ Simple social interactions
・ Requires caregiver supervision
・ Limited skill learning capacity
・ Cannot attend school or events independently
・ Basic interactions only
Child・ Develops core Values
・ Attends Elementary School
・ Gets a Smartphone
・ More Social Interactions
・ Experiences Random Events
・ Cannot work or earn money
・ No romantic relationships
・ Limited travel without adult supervision
Adolescent・ Transitional life stage features
・ New social interaction options
・ Limited career options
・ Cannot live independently
・ Restricted from adult activities
Teenager・ Attends High School
・ Can form Business Relationships
・ Complex social interactions
・ Part-time job eligibility
・ Cannot marry or have children
・ Limited to part-time jobs
・ Must attend school
Young Adult・ Selects Ambitions
・ Chooses a Desired Life
・ University education option
・ Full career access
・ Complete Romantic Relationships system
・ May have student debt if attending university
・ Entry-level positions only in careers
・ Limited savings and assets
Adult・ University graduation
・ Career advancement
・ Family planning and building
・ Peak earning potential
・ Work-life balance challenges
・ Family responsibilities may limit activities
・ Career demands can be stressful
Middle-Aged・ Mid-life events and opportunities
・ Career mastery potential
・ Family relationship development
・ Slower skill learning rate
・ May face age discrimination in careers
・ Reduced physical capabilities
Senior・ Retirement option
・ Legacy building
・ Family elder status
・ Special senior interactions
・ Limited physical activities
・ Cannot start new careers
・ Higher risk of health issues
・ May require care from family

The Young Adult stage is when Zois gain access to the full range of gameplay features and life choices available in inZOI.

Understanding the nuances of each life stage will help you craft compelling stories and guide your Zois through fulfilling lives in the rich world of inZOI!