Attribution & Data Sources

Last updated: October 2026

Geographic data

Natural Earth — Country boundaries, admin-1 subdivisions, physical features, and populated places. Public domain. naturalearthdata.com
world-atlas (TopoJSON) — Pre-built TopoJSON files derived from Natural Earth. Mike Bostock, public domain. github.com/topojson/world-atlas

Earth & planet textures

NASA Visible Earth — Blue Marble and Black Marble satellite imagery and cloud map, used for the globe texture, clouds and city lights. Public domain. visibleearth.nasa.gov
NOAA ETOPO 2022 — Global elevation data used for the terrain relief on the globe. Public domain. ncei.noaa.gov
Natural Earth raster — Cross-blended hypsometric tints for terrain colouring. Public domain.

Libraries

Three.js — 3D rendering (MIT license)
D3.js — Geographic projections and data processing (ISC license)
Vue.js — Application framework (MIT license)
Pinia — State management (MIT license)

Fonts

Sora — Primary UI font by Jonathan Barnbrook, Cyreal (OFL license)
Nunito — Secondary font by Vernon Adams, Cyreal, Jacques Le Bailly (OFL license)

Services

Sentry — Error monitoring
Supabase — Authentication and database
Cloudflare — Hosting and CDN
Stripe — Payment processing
Google Fonts — Font delivery

Flags

flag-icons — SVG country flag icons, MIT license

Icons

game-icons.net — Avatars, pack icons and other motifs from game-icons.net by Lorc, Delapouite, Caro Asercion, Cathelineau and Skoll, redrawn by hand for Fathom. game-icons.net (CC BY 3.0)

Note on borders

Country borders shown in Fathom are based on Natural Earth datasets and are intended for educational quiz purposes only. They do not represent any political position on disputed territories or sovereignty claims.