What is 1 in 8 Billion?
1 in 8 Billion (1in8b.life) is a free browser game by a Korean indie developer. You are born as one of the roughly four babies born every second, somewhere in about 170 countries, and you live that person’s life using real data from the UN, the World Bank and the WHO. It started on Threads in early October 2026 and spread fast in Korea, Japan, Taiwan and Hong Kong, then to France, Thailand and Vietnam.
How to play
Open the site, pick a language and press start. The game draws where you are born, then moves through your life year by year.
- Your birth. Country, city, family and sex are drawn from real birth statistics, so you are far more likely to be born in India or Nigeria than in Japan.
- Your years. School, work, health and family follow the odds of the place you were born.
- Reflection stops. At milestone ages the game pauses and asks you a question about the life so far. There are no right answers.
- The end. The life ends when the statistics say it does. You get a life card to share, and a short summary of who you were.
How long does one life take?
A full life usually takes 30 minutes to an hour and a half, depending on how long you live and how long you spend on the reflection questions. If you want the feeling in three minutes, try Birth lottery (3 min): same idea, real numbers, five choices and a card at the end.
Why does it hit so hard?
Most people have never seen their own birth as a draw. When a quarter of the world’s babies are born in South Asia and fewer than one in a hundred in Japan, being born in Taiwan or Korea suddenly looks like winning a lottery. The share cards read like short obituaries, which is why people post them, and why the comments fill up with “I cried”.
The real odds behind the draw
We built our own birth lottery from the same kind of open data: 2024 UN World Population Prospects figures for births and life expectancy in 210 countries, plus Gapminder series for income, schooling and child survival. About 132 million babies are born a year, or roughly 363,000 a day. Here is where they are born:
| Country | Share of births | About 1 in |
|---|---|---|
| India | 17.5% | 6 |
| China | 6.7% | 15 |
| Nigeria | 5.7% | 18 |
| Pakistan | 5.2% | 19 |
| Indonesia | 3.4% | 30 |
| Congo - Kinshasa | 3.4% | 30 |
| Ethiopia | 3.1% | 32 |
| United States | 2.8% | 36 |
| Bangladesh | 2.6% | 38 |
| Brazil | 1.9% | 51 |
| Everywhere else | 47.7% | – |
Almost one baby in five is born in India. One in 36 is born in the United States, one in 176 in Japan, one in 549 in South Korea, about one in 1,000 in Taiwan and about one in 3,300 in Hong Kong. That is the number people are reacting to when their 1 in 8 Billion life starts somewhere far from home.
Rich or poor, long or short
By the World Bank’s income groups, only about 8.5% of today’s babies are born in a high-income country, while 21.5% are born in a low-income one and about half in lower-middle-income countries. By region, 32% are born in sub-Saharan Africa and 27% in South Asia, against about 7% in all of Europe and Central Asia.
How long the life lasts depends on the draw too. Averaged over where babies are actually born, life expectancy at birth is about 70 years. It ranges from under 55 years in Nigeria to almost 86 in Hong Kong. A life game built on real numbers will end early surprisingly often, which is a big part of why the endings feel heavy.
1 in 8 Billion and our birth lottery
The two are separate games that share an idea. The differences, so you can pick:
- Length. One life in 1 in 8 Billion takes 30 to 90 minutes. Our birth lottery takes about three minutes with five choices; the full life has ten choices, from first love to your legacy; endless lives plays one life after another for you.
- Sharing. Every life in our game comes from a seed plus your choices, so a shared link replays exactly the same life on a friend’s phone.
- Data. Both say they use real statistics. Ours lists its sources here: UN World Population Prospects 2024 and Gapminder, which republishes UN, World Bank and IHME series.
- Official site. 1 in 8 Billion is at 1in8b.life. quirkquiz.com is not connected to it.
Is it free?
Yes, the game is free with no ads. After a life you can buy an optional one-off keepsake (a few dollars) for extra mementos of that life. You don’t need it to play.