1 in 8 billion life simulator: where would you be born?
In 1in8b life, about four babies are born every second. You become one of them and follow one life to its end. You don’t choose where you’re born or who your family is. Your choices shape what happens next.
Free through age 30 Sign in to play Pause any time
Your choices, a different storyAI LIFE · $9.99 once, lifetime accessToday's theme Child labour Every life born today passes through this theme together.
Your chance of being born in each country
UN World Population Prospects 2024 · based on 131.9 million people born in 2023
Shared lives
Each person shares the life they lived and what they took from it. No names or contact details, just a life.
No shared lives yet. Finish a life and choose to share it here.
Memorials
Lives that reached their last year. You can stop by, light a candle, and leave a word.
Loading memorials…
This simulation presents mortality statistics and fictional life events in text. It is designed for ages 15 and up.
Ages 15+Includes country-level birth and mortality statistics, plus fictional family details.Stories are fictional and are not advice for real-life decisions.Play free through age 30. A one-time $9.99 AI LIFE Pass unlocks the rest of the life and AI LIFE. No subscription or renewal. The optional $3 Keepsake Pass is separate.
People in this simulation
Live activity
Other example lives
The sample profiles on this page are fictional examples. A new country, birth year and life record are drawn when you begin; the live session counts below come from saved sessions on this site.
A pause
At key ages, time pauses for a choice. Your decisions shape health, happiness, learning and relationships as this life unfolds.
What comes from real data
The country snapshot includes birth share, life expectancy, under-five mortality and GDP per person (PPP) for 172 countries. Birth data draws on UN World Population Prospects; the country indicators link to World Bank data series. Country selection uses either birth-share weights or 2024 population totals. The ending age is a simplified random model based on country averages; it is not a life-table forecast. Family details and story events are illustrative.
At ages 5, 15, 30, 50 and 70, choose a path or let Auto mode choose for you. Choices update health, happiness, knowledge and relationships; health choices can also nudge the simplified ending age. Country averages shape the model, while chance still plays a part.
The ending age is a simplified model based on country averages, not a personal forecast. The simulation does not depict graphic scenes and is made for ages 15 and up.
Play free through age 30. A one-time $9.99 AI LIFE Pass unlocks the rest of the life and AI LIFE. No subscription or renewal. The optional $3 Keepsake Pass is separate.
What is the 1 in 8 billion game?
1in8b life is a life simulation with free play through age 30. You can follow a randomly selected newborn, then unlock the rest of the life with the one-time $9.99 AI LIFE Pass.
The country odds describe this model's dataset; they do not predict an individual person's birthplace or future. Life expectancy and story details are simplified or fictional examples. How the simulation works · 1 in 8 billion chance · Chance by country.
Frequently asked questions
How does 1in8b life choose a birthplace?
You can draw a country using its share of births in the dataset or its 2024 population. The birth-share option is weighted across 172 countries; it does not predict where any particular person would be born.
Is 1in8b life free to play?
Play free through age 30. Before advancing to age 31, pay $9.99 once to unlock the rest of the life and AI LIFE for life. Sign in before checkout; access stays linked to your account. No subscription or renewal.
Is this like BitLife?
It is a browser life simulator with choices, but 1in8b life starts by drawing a birthplace from country birth data. Story details are illustrative.
Is the simulated life expectancy a personal prediction?
No. The ending age is a simplified illustrative model based on country averages. Family details and story events are fictional examples, not forecasts about an individual.
What does AI LIFE unlock?
Follow one life through key choices. AI adapts scenes to your decisions, and people or promises from earlier moments can return.
How much does AI LIFE cost?
Play free through age 30. Before advancing to age 31, pay $9.99 once to unlock the rest of the life and AI LIFE for life. Sign in before checkout; access stays linked to your account. No subscription or renewal.
Can I see an example before paying?
Yes. The AI LIFE page has a fixed sample scene, not live AI output. Your scenes adapt to your choices.
Does lifetime access include unlimited AI scenes?
Yes. The lifetime pass includes unlimited AI scenes, with no daily or total cap. If AI is unavailable, the built-in writer continues your story.
About 1in8b life · Privacy policy · Terms · Support · Ideas and feedback: ·
Teaching a class? Use Open classroom mode to hide AI LIFE, feedback, and birth-card sharing.
Abuk Makur
In January 2026, you were born a girl in Juba, South Sudan, into a family in the top 20–40%. You have an older brother aged 3. Your family's religion is folk / traditional religion.
Living to life expectancy takes about an hour (1 year ≈ 60 s). If you close the page, the life is saved in this browser and goes on when you come back in the same browser.
- Moon JisooGwangju, South Korea · F · a family of modest means
- Landry MukendiLubumbashi, DR Congo · M · a well-off family
- Ayu NasutionBandung, Indonesia · F · a family of modest means
- Đinh Hữu ThắngVietnam (rural) · M · one of the poorest families
Their lives, too, will run to the end by the same statistics. We'll show them alongside yours.
To go faster, tap 4× or 8×. Time stops whenever an important decision comes.
- Sex
- Female
- Birth
- South Sudan · 1/2026
- Lives in
- Juba, South Sudan
- Religion
- folk / traditional religion
- Family background
- Education
- Not in school yet
260101FSSD<001<<<<<<<<<<<<<<<<<<<<<<
Status0–100
What do these mean?
- Health Health changes your risk of dying and your ability to work. Exercise and checkups improve it; getting older wears it down.
- Happiness Your life satisfaction, shaped by money, relationships, health and debt.
- Knowledge Helps with exams, hiring and first salary, though family income and local schools matter more. Past roughly 70 the extra benefit is small.
- Relationships Relationships with family and friends. They influence marriage, parenting, bullying risk at school and loneliness later in life.
Higher stats improve your chances but never guarantee a result; luck and circumstance still count.
Family and life
Juba, South Sudan · an apartment · with your parents and a brother or sister
Life choicesChange it anytime
Life recordNewest first · tap a line for ☆
- Age 1You said your first word: ‘Mama’.
- Age 1You took your first steps. The whole family clapped.
- Age 1Age 1. Of the girls born in South Sudan the same year as you, about 93% are still alive.
- Age 0You got your basic vaccinations (DTP and measles).In 2023, 84% of infants worldwide received all three doses of the DTP vaccine (WHO·UNICEF)
- Age 0In January 2026, you were born a girl in Juba, South Sudan, into a family in the top 20–40%. You have an older brother aged 3. Your family's religion is folk / traditional religion.
Born in the same secondAt this same age
- Moon JisooSouth Korea · Fearly childhood
- Landry MukendiDR Congo · Mearly childhood
- Ayu NasutionIndonesia · Fearly childhood
- Đinh Hữu ThắngVietnam · Mearly childhood
Life map1 square = 1 year
Illustrative survival modelApproximation from country-level averages
South Sudan
- Births per year
- 0.3 million people
- Population
- 11.5 million people
- Life expectancy, women / men
- 59.3 / 55.8 years
- Under-5 mortality
- 96.7 per 1,000
- GDP per person (PPP)
- $900
- Income Gini coefficient
- 0.44
- Urban population
- 21%
- Working in agriculture
- 64%
- Expected years of schooling
- 5.6 years
- Tertiary enrollment (gross)
- 3%
- Internet use
- 7%
- Fertility rate
- 3.86
- Maternal mortality (per 100,000 births)
- 1223
- HIV prevalence (ages 15–49)
- 1.67%
- Homicide rate (per 100,000)
- 14
- Road deaths (per 100,000)
- 20
- Tobacco use, men / women
- 25% / 3%
- Out-of-pocket health spending
- 31%
- Married before 18 (women)
- 52%
- Life satisfaction (0–10)
- 2.82
- UN World Population Prospects 2024 — births and population weights
- UN IGME — child mortality
- World Bank WDI — country development indicators
- WHO — maternal health, smoking and health spending
- UNESCO UIS — education
- UNDP HDR 2025 Statistical Annex, Table 1 — expected years of schooling (2023)
- UNDP Human Development Data — human development indicators
- ILOSTAT, UNAIDS, UNODC and UNICEF — labor, health and safety indicators
- Our World in Data and the World Happiness Report — life satisfaction and related measures
- Maddison Project Database and UCDP — historical and conflict context
Some missing values are estimated from regional averages. Read how the simulation uses data.
