Interactive storytelling platform where you play, create and share stories in beloved worlds
A free browser life simulator where you are born randomly and live one life to its end
Stage
Established
Not given
Founded
2020
Not given
Based in
US
Not given
Pricing model
Freemium
Free
Pricing
Free tier includes unlimited play across all worlds, character chat, and personal profile. Creator plan available for creating and sharing custom worlds (price not specified on pricing page).
Not given
Key features
Interactive fiction gameplay with branching narratives
Character chat and side conversations
Atlas world-building studio
Licensed worlds from film and publishing partners
Modifier cards for story customization
Private and public world sharing options
Creator API for building custom experiences
Hand-drawn art and human-written narrative beats
Play 172 countries with real birth statistics
Life decisions affect outcomes
Realistic mortality and life expectancy data
Gameplay from age 0 to death
Optional text-to-speech narration
Share life summaries and life cards
Play at variable speed or pause
Auto mode to watch without deciding
10 languages including Chinese, Japanese and Vietnamese
Local browser storage, no cloud account required
What makes it different
Protects creator IP and never trains models on partner content
Narrative world model ensures canon compliance across all player stories
Human-created narrative beats and art paired with specialized AI
Transmedia experience combining fanfiction, RPGs and social gameplay
Small tuned models that outperform larger general models on narrative tasks
Built on real UN and World Bank data, not randomization
Independent edition separate from the original 1in8b.life project
Covers inequality, illness and mortality at real rates
Hidden Door
1 in 8 Billion