Diff - newborns and toddlers - inZOI Wiki

11 Newborns and Toddlers are the two earliest life stages in inZOI. They require direct parental care and cannot survive independently. Newborns last only 1 in-game day and are almost entirely passive, while Toddlers last 2 in-game days and introduce feeding, diaper changes, and early skill development. Both stages can begin through pregnancy, adoption, or Create a Child with Medical Help.

33 Newborns

55 The Newborn stage is the shortest and most limited life stage in inZOI, lasting exactly 1 in-game day (approximately 48 real minutes at the current default speed (48 minutes per in-game day)).

77 Newborn Characteristics

99 AspectDetailsDuration1 in-game dayLocationConfined to their crib. Newborns cannot be moved or carried around the lot.HungerNewborns do not have a hunger mechanic. They do not need to be fed.Available interactions"Check Their Temperature" was initially the only parenting interaction available. The v0.7.0 update (March 2026) added additional baby care options including cleaning up after baby Zois and infant bathing.AutonomyNone. Newborns are entirely passive.BabysitterIf all household members leave the lot, a babysitter automatically appears to watch the Newborn.

1010

1111 The Newborn stage is essentially a waiting period. The baby stays in its crib, and the primary interaction is checking temperature. Parents can talk to the baby and show affection through the crib, but there is no feeding, bathing, or skill development at this stage.

1212

1313 Getting a Crib

1414

1515 A crib is required before the baby arrives. Purchase one through Build Mode and place it in the home. If no crib is present when the baby is born or adopted, the Newborn will still appear but may have placement issues. It is best to prepare the nursery before the baby arrives.

1616

1717 Toddlers

1818

1919 The Toddler stage lasts 2 in-game days (approximately 96 real minutes (2 in-game days at 48 minutes each) at default speed) and introduces active caregiving. Toddlers have full needs that must be managed by a parent or hired caretaker.

2020

2121 Toddler Needs and Care

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2323 NeedHow to FulfillHungerA parent or caretaker must give the Toddler formula. Select the Toddler, then choose Parenting > Give Formula. Alternatively, switch to the Toddler and click the Hunger need directly. Formula is automatically available; no purchase is needed.HygieneToddlers need diaper changes. The diaper change interaction is performed on the floor, not on a changing table.SleepWhen tired, Toddlers spawn a Toddler Rug and lie down to sleep wherever they happen to be. They do not use cribs or beds.FunToddler toys (Soft Book, Toddler Slide) satisfy the Fun need and also contribute to skill development.SocialInteractions with parents, siblings, and other household members fulfill social needs.

2424 A parent or hired nanny must be nearby for feeding. The Toddler cannot feed themselves. If all adults leave the lot, the automatic babysitter system activates (same as the Newborn stage).

2525

2626 Toddler Skill Development

2727

2828 Toddlers have access to basic developmental activities (the formal skill system with Creativity, Motor Development, Responsibility, and Social skills unlocks at the Child stage), which is leveled through interaction with toddler-specific toys. The Soft Book and Toddler Slide are the primary tools for building this skill. Cognitive Development does not directly transfer to adult skills, but it contributes to the child's readiness for the more impactful child skills (Creativity, Motor Development, Sociability, and Responsibility) that become available in the next life stage.

2929

3030 Aging Up

3131

3232 Life stage transitions for young Zois follow this progression:

3333

3434 TransitionDuration Before TransitionNewborn to Toddler1 in-game dayToddler to Child2 in-game daysChild to Adolescent7 in-game days

3535 Aging up is automatic and cannot be manually triggered or delayed (unless aging is disabled in the simulation settings). For full details on all life stage durations and aging settings, see Lifespan and Aging.

3636

3737 Obtaining a Newborn or Toddler

3838

3939 There are three ways to add a Newborn or Toddler to a household:

4040

4141 MethodDetailsPregnancyThe natural result of romantic interactions between partners. Produces a Newborn after the pregnancy period. See Pregnancy.AdoptionAvailable through any computer or laptop via General Action > Adopt a Child. Players can choose to adopt a Newborn or Toddler directly. See Adoption.Medical HelpCreate a Child with Medical Help costs 1,000 Meow and produces a Newborn with genetic traits from one or both parents.

4242 Newborns and Toddlers cannot be created directly in Character Creation. They can only enter the game through one of the three methods above.

4343

4444 Recent Developer Updates

4545

4646 The February 2026 developer diary revealed several improvements in development for Newborns and Toddlers:

4747

4848 UpdateDescriptionToothless spawningNewborns will spawn without visible teeth and gradually gain them as they grow, improving visual realism.Toy imitationBabies will animate imitating toy movements (for example, mimicking a duck toy's wing-flapping motions) as a learning behavior.New outfitsTwo new outfit options for Newborns and Infants are being added.PhotographyadjustmentsParent-baby photo interactions are being made less intrusive so they do not interrupt caregiving routines.

4949 These features were shown in the developer video diary and may be included in a future update.

5050

5151 The late-May and June 2026 weekly updates added to this list: functional high chairs appeared in the June update preview cycle, and the team described ongoing work to make baby appearances cuter and more natural along with new hairstyles in development. As with the February items, these are preview features until they appear in patch notes.

5252

5353 Tips

5454

5555 Prepare the nursery before the baby arrives. Place a crib in advance and ensure a parent or caretaker will be home when the Newborn appears.The Newborn stage is only 1 in-game day. Do not invest too much time rearranging the house for this stage; focus instead on preparing for the Toddler stage, which lasts twice as long and requires active care.Keep a parent at home during the Toddler stage. While the automatic babysitter handles survival, direct parent interactions build the parent-child relationship and contribute to the Toddler's social development.Buy Toddler toys (Soft Book, Toddler Slide) from Build Mode before the Toddler stage begins. These toys are the only way to develop basic developmental activities (the formal skill system with Creativity, Motor Development, Responsibility, and Social skills unlocks at the Child stage).If managing multiple Zois is overwhelming, use simulation speed controls (1x to 4x) to slow down time during demanding caregiving periods.Formula feeding is the only food option for Toddlers. Unlike later stages, there is no cooking or meal preparation involved; the formula is automatically available.

56+

57+v0.9.0 Baby System Additions

58+

59+The v0.9.0 update (June 19, 2026) expanded the baby stage with new behaviors, care items, and risks.

60+

61+New baby traits were added to broaden baby behaviors.Values developed during the baby stage can cause the Zoi to inherit fitting traits, and parent interactions shape which values develop.Babies can become sick, which causes the parents to worry.Babies can be placed in more locations outside the house.High chairs and baby food were added, with eight new interactions for a baby placed in a high chair.Zois can slip and fall when stepping on baby urine.

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