Getting started
Go from a numeric seed to your first saved world and place.


The field guide
Learn the controls, understand the predictions, and keep a record of what you discover.
Biomechart is a local prototype. Public app launch and account service are still ahead. This guide describes the current prototype, with experimental features labelled throughout.
Go from a numeric seed to your first saved world and place.
Pan, zoom, rotate and understand Surface versus Underground.
Search the current view and interpret experimental POI candidates.
Keep named worlds, coordinates, notes and your own progress records.
Protect browser-only saves and understand optional account journals.
Check version support, evidence and what a seed cannot tell you.
Quick answers about accuracy, storage and edition support.
The project's purpose and its open-source foundations.