# OFstats Replay — credits and third-party licences

OFstats Replay (replay.ofstats.io) is an **unofficial** replay viewer for OpenFront.io, built and
run by OFstats. It is not affiliated with, endorsed by, or supported by OpenFront Inc.

Questions or takedown requests: the OFstats Discord — https://discord.gg/crtnVtv3sg

## OpenFront engine — AGPL-3.0

Replays are produced with OpenFront's open-source game engine. The gold popup renderer also uses
its unmodified world-text vertex and fragment shaders.

    © OpenFront and Contributors
    https://github.com/openfrontio/OpenFrontIO
    GNU Affero General Public License v3.0 — https://www.gnu.org/licenses/agpl-3.0.html

Additional terms under AGPL section 7, reproduced from upstream's LICENSE:

    Copyright Preservation Requirement (Section 7(b)):
    OpenFront displays copyright notices in the footer and on the loading screen. Modified
    versions must preserve the copyright notice "© OpenFront and Contributors" in reasonably
    visible locations such as the footer, loading screen, splash screen, or main menu.

    Prohibition of Misrepresentation (Section 7(c)):
    Modified versions may not misrepresent their origin or relationship to the OpenFront project.
    Modified versions must not use "OpenFront" as their primary title or imply official
    endorsement without permission.

## OpenFront game assets — CC BY-SA 4.0

The viewer uses art from the engine's `resources/` directory: the unit, effect, status and
structure-icon atlases; the structure and unit icons; the pixel and MSDF font atlases; and the cosmetic player flags.

    © OpenFront Inc. and Contributors
    Creative Commons Attribution-ShareAlike 4.0 International
    https://creativecommons.org/licenses/by-sa/4.0/

## Flags — Wikimedia Commons, CC BY-SA 3.0 DE

Country and historical flags in the engine's flag set come from Wikimedia Commons —
https://creativecommons.org/licenses/by-sa/3.0/de/deed.en

## Overpass — SIL Open Font License 1.1

The Overpass typeface (Delve Withrington, Dave Bailey, Thomas Jockin; Red Hat) —
https://scripts.sil.org/OFL

## Map data and icons

OpenFront's map data and icons carry their own attributions (OpenStreetMap under ODbL, Natural
Earth, NASA, Copernicus, Noun Project authors and others), maintained by OpenFront in `CREDITS.md`
— https://github.com/openfrontio/OpenFrontIO/blob/main/CREDITS.md — and applying here in full.

## Browser export libraries

GIF encoding uses [gifenc](https://github.com/mattdesl/gifenc), under the MIT licence:

    The MIT License (MIT)
    Copyright (c) 2017 Matt DesLauriers

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
    DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
    OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
    OR OTHER DEALINGS IN THE SOFTWARE.


Video encoding and muxing use Mediabunny 1.61.0, © 2026-present Vanilagy and contributors,
under the [Mozilla Public License 2.0](/licenses/mediabunny.txt). Its unmodified source is
available in the [published package](https://www.npmjs.com/package/mediabunny/v/1.61.0) and
[upstream repository](https://github.com/Vanilagy/mediabunny).

## OFstats

Everything not listed above is © OFstats. Game records are OpenFront's, fetched from their public
API.