# mewo2/terrain

Fantasy map generator

Repository: https://github.com/mewo2/terrain
Canonical: https://ross.abutalabs.com/products/terrain
Language: JavaScript
License: NOASSERTION
License Family: other
Last push: 2016-08-15T10:43:45+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3676, "days_push": 3670, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3043, forks 359 (observed 2026-08-28T04:07:39.406047+00:00)

## What it is
A JavaScript library that procedurally generates fantasy terrain maps using the algorithm behind the @unchartedatlas Twitter bot. It builds on D3.js and a companion language-generation library to produce fictional world maps with place names.

## Use cases
- generate fantasy maps for a tabletop RPG campaign
- create procedural fictional world maps in the browser
- learn how terrain generation algorithms work
- generate fantasy place names alongside terrain
- build a map generator bot or web toy

## When to choose
- you want a proven fantasy terrain generation algorithm to fork or learn from
- you need browser-based procedural map generation with D3
- you want generated fictional names to accompany your maps

## When to avoid
- you need a maintained project with support or accepted pull requests
- you need a production map-generation service with guarantees
- you need real-world geographic data rather than fictional maps

## Facets
- artifact type: library
- maturity: abandoned
- function: simulation, graphics, data-visualization
- domain: graphics, simulation
- platform: browser
- tags: procedural-generation, fantasy-maps, d3, worldbuilding, generative-art, game-development, javascript

## Member repositories
- mewo2/terrain (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:39.406047+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:29:12.561481+00:00, confidence not recorded.
  - readme: https://github.com/mewo2/terrain (fetched 2026-08-28T04:07:39.406047+00:00, sha 6e61d441b401)
- Data as of 2026-08-30T08:39:29.467469+00:00.