Learn a language
like you're playing
an RPG
3B teaches you languages like you're in a role-playing game.
Learn, explore, and watch the world change as you make decisions
and encounter new locations all while building your vocabulary and grammar.
Immersive Stories
World Building
Leveling System
Butterfly Effect
6+ Languages
Adaptive Learning
Learning like you're playing a game
Immersive Story-telling
Narratives that combine choice and compelling scenarios
Satisfying World-building
Scenarios with interactive NPCs and unique goals
Leveling System
Reaching new levels actually means something
Butterfly Effect
Choices that impact what happens in future scenarios
Adaptive Learning
Tracking what you’re learning to help you retain more

Enter a world of languages
Learn a language in an immersive environment that evolves alongside you.

Eastern Armenian
Also called Anglosaxon, it is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages

Old English
Also called Anglosaxon, it is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages

Ancient Greek
Also called Anglosaxon, it is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages
Frequently asked questions
3B is currently in beta and is free to play. This may change in the future as more content and more languages become available, depending on how much it costs to serve the app to learners all over the world..
3B blends choose-your-own-adventure storytelling with adaptive language practice. It's focused on learning first.
Yes. You can play in a mobile browser now; iOS and Android native apps are planned for future release.