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 to play No account or personal details needed Pause any time
Take the story furtherAI Story Mode · 3 choices free · $10 one-time passToday's theme Safe roads 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
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.The main life simulation is free. Keepsake features and the optional AI Story Pass are separate from the free experience.
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.
The free life simulation uses public country statistics from the UN and World Bank. Family details and story events are illustrative; AI Story Mode is a separate experience.
What is the 1 in 8 billion game?
1in8b life is a free life simulation that starts with a randomly selected newborn and follows one illustrative life to its end. The birthplace draw uses birth shares from a 172-country dataset. You can make choices at key ages, pause the simulation, and explore how the story changes.
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?
The life simulation is free to play in a browser and does not require an account or personal details.
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.
About 1in8b life · Privacy policy · Terms · Support · Ideas and feedback: ·
Teaching a class? Use Open classroom mode to hide AI Story Mode, 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.
| If born on the same day | China (where you were born, a guess) | South Sudan (this child) |
|---|---|---|
| Life expectancy | 80.7 years | 59.3 years |
| Chance of dying before age 5 | 0.6% | 8.9% |
| Expected years of schooling | 15.5 years | 5.6 years |
| GDP per person (PPP) | $22,687 | $900 |
- 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.
Other example livesIllustrative profiles
- 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 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.