This One Life
Passport 0Codex
SoundOn
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Play · This One Life

Be born somewhere else. Make a wish, live seven chapters, and discover what your choices leave behind.

Where will you begin?

Free. No sign-up. Your progress stays on this device.

One life, seven chapters

Be born

Your birthplace is drawn using cited UN birth shares among 30 featured countries. Your fictional character begins without a predetermined ending.

Choose what matters

Choose a wish. Read the moments between decisions, meet people who remember your actions, and discover how an earlier choice can return.

Carry something forward

Finish a life to collect its ending and a thread of memory. Your passport keeps the lives you have completed, ready to export to another browser.

Read at your own pace

You can stop after a card or chapter. Progress saves to this browser after every decision, provided device storage is available. The Full route offers chapter breaks; Quick runs through seven central moments. Returning to this page offers the current saved life. Keeping a separate passport export protects your progress when changing devices.

Share the starting point

A challenge link includes a short seed. The same valid seed starts the same fictional life; the same choices reproduce its path. Different decisions can produce different endings. The link does not include your personal notes, your passport or your browser history. A share poster is a locally generated image of the completed story.

Sources and method

Birth shares count babies born in a year. Population shares count people alive at a point in time. They answer different questions, and this game uses birth counts rather than population counts.

About

Where new lives begin

Source: UN DESA WPP 2024 · births in 2023

UN DESA · World Population Prospects 2024