Feature LabBedrock worldgen features, measured.

One page per feature type, every claim pinned to Minecraft Bedrock 1.26.60.22 and reproducible from a committed fixture pack. Plus the engine that measures them and the editor that shows them.

Feature types

Scatter feature

Engine & CLI

Feature types

What each of the 29 JSON feature types does, how many random draws it spends and in what order, what its fields default to, and how it fails while looking correct. The core of this site.

The engine and its CLI

A Go reimplementation of the game's feature placement that loads a pack, builds a bench world and runs one feature or one rule in it — and says, in a diagnostic, everything it declined to do.

The editor

A VS Code extension and a desktop app around the same viewer — a graph of your pack's features as cards you can edit, and a 3D preview of what one of them places.