Credits and licences
Version of 25 October 2026
FH Arena is built with the help of many people who shared their work under open licences. Thank you! Below are the third-party materials shipped with the game, their authors and licences. “Modified” means adapted for the game: repainted in the game palette, simplified, split into parts or compressed.
3D models
All models below are modified.
Animations
Character animations: Adobe Mixamo, retargeted and baked for the game (no attribution required by the Mixamo terms; credited with thanks).
Sound effects
Cut and converted.
| Work | Author | Licence |
|---|---|---|
| Handgun Reload Sound Effect | zer0_sol | CC0 |
| Equipment Clicks III | LFA | CC0 |
Wartime radio in the menu
102 recordings from 1937–1947 from the Internet Archive and Wikimedia Commons: public-domain recordings, works of the US federal government and Sovinformburo bulletins. “Ciribiribin” — Guglielmo Bonfoco, ICBSA, CC BY-SA 4.0 (cut, normalised and re-encoded; the adaptation is shared under the same licence).
Map and terrain data
The Mediterranean theatre is built from open data. Required notices:
| Data | Used for | Notice | Licence |
|---|---|---|---|
| OpenStreetMap | coastline, lakes and rivers, roads and railways, bridges, buildings | © OpenStreetMap contributors | ODbL 1.0 |
| Copernicus DEM GLO-30 | terrain elevation of the theatre | Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The organisations in charge of the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30. | COPDEM-30 |
| GEBCO 2025 Grid | coarse land and sea floor of the whole Earth | GEBCO Compilation Group (2025) GEBCO 2025 Grid (doi:10.5285/37c52e96-24ea-67ce-e063-7086abc05f29) | public domain |
| ESA WorldCover 2021 | land cover classes | © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium | CC BY 4.0 |
| HILDA+ | land cover adjusted towards 1940 | Winkler, K.; Fuchs, R.; Rounsevell, M. D. A.; Herold, M. (2020): HILDA+ Global Land Use Change between 1960 and 2019. PANGAEA, doi:10.1594/PANGAEA.921846 | CC BY 4.0 |
| GHSL BUILT-S R2023A | town extents as of 1975, used to restore 1940 towns | © European Union; Pesaresi, M., Politis, P. (2023), doi:10.2905/9F06F36F-4B11-47EC-ABB0-4F8B7B1D72EA | CC BY 4.0 |
| Global Dam Watch v1.0 | removing post-war reservoirs | Lehner, B. et al. (2024), figshare 25988293 | CC BY 4.0 |
| ISTAT | population of towns | ISTAT — census of 1936 and 1971 | CC BY 4.0 |
| GeoNames | places and airfields | GeoNames (geonames.org) | CC BY 4.0 |
| Wikidata | place names in English and Russian | Wikidata | CC0 |
| IGN BD ORTHO historique | positions of several airfields | IGN — BD ORTHO historique | Licence Ouverte Etalab 2.0 |
Fonts
Oswald is used on this website; PT Sans Narrow and Alte DIN 1451 are printed into instrument scales; PT Serif (a subset renamed WBMap Serif) and Roboto Condensed label the map.
| Font | Copyright | Licence |
|---|---|---|
| Oswald | Copyright 2016 The Oswald Project Authors | OFL 1.1 |
| PT Sans Narrow | Copyright (c) 2010, ParaType Ltd. | OFL 1.1 |
| Alte DIN 1451 Mittelschrift | Peter Wiegel | OFL 1.1 |
| PT Serif | Copyright (c) 2010, ParaType Ltd. | OFL 1.1 |
| Roboto Condensed | Copyright 2011 The Roboto Project Authors | OFL 1.1 |
Software
Open-source libraries in the game and on our servers.
| Library | Copyright | Licence |
|---|---|---|
| three.js | Copyright © 2010-2026 three.js authors | MIT |
| meshoptimizer | Copyright (C) 2016-2026, by Arseny Kapoulkine | MIT |
| Basis Universal | Copyright Binomial LLC | Apache-2.0 |
| i18next, i18next-browser-languagedetector, i18next-resources-to-backend | Copyright (c) 2011-present i18next | MIT |
| Very fast procedural ocean (shader) | afl_ext 2017-2024 | MIT |
| d3-celestial (star catalogue) | Copyright (c) 2015, Olaf Frohn | BSD-3-Clause |
| Better Auth, Fastify, Drizzle ORM, postgres.js, node-rs/argon2 | MIT / Apache-2.0 / Unlicense |
Reference sources for our own aircraft models
Used only for dimensions; not shipped with the game.
Kaboldy (Wikimedia Commons) — three-view drawings of the La-7, Fw 189 and Il-2; MMK-Draw — La-5 three-view; Ssawka — La-5FN; US technical manuals and USAF and US Navy photos (public domain); Bundesarchiv photos; Maru Mechanic No. 32 and TAIC Manual No. 1 (Ki-67); Goodyear and NACA documents (K-class airship).
Missing something?
If you are an author and your work is credited incorrectly or missing, please write to fharena@googlegroups.com.