Critical Gaming Hubfree games · night shift

Legal · licenses

Licenses

Plain-English draft, not legal advice. We wrote this ourselves to say clearly what we do. It wasn't written by a lawyer, and it should be reviewed by one before anyone relies on it. Last updated 4 October 2026.

Our own work: public domain

  • Content: CC0 1.0 Universal. Art drawn in code, the writing, level data, sound recipes and music patterns, the trailer, the screenshots, and the words and pictures on this website. We've waived all our copyright and related rights, as far as the law allows. Full CC0 text.
  • Code: Zero-Clause BSD (0BSD). The games, the game server, the form server and this website's code. Use it for anything; no attribution needed. Full 0BSD text.

CC0 and 0BSD cover copyright only. They don't license our names and logos: see Trademarks. Credit is never required, but "based on CLOSED CASKET by Critical Gaming Hub" is always welcome.

Zero-Clause BSD (0BSD)

Copyright (C) 2026 Critical Gaming Hub

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

Third-party parts (they keep their own licences)

Fonts: SIL Open Font License 1.1

Self-hosted on this site and in the game. Never loaded from a font service.

  • IM FELL English SC, copyright (c) 2010, Igino Marini. Licence
  • Courier Prime, copyright 2015 The Courier Prime Project Authors. Licence
  • Bungee, copyright 2023 The Bungee Project Authors. Licence

Code libraries

  • partysocket 1.3.0 (game client networking), MIT License, copyright (c) 2010-2012 Joe Walnes and PartyKit/Cloudflare contributors. Licence
  • partyserver 0.5.x (game room server), ISC License, copyright (c) Sunil Pai and PartyKit/Cloudflare contributors.
  • Electron 33 and Chromium (desktop builds only), MIT and the licences listed in LICENSES.chromium.html, which ships next to the program in every desktop build.

Dispatcher voice

  • The dispatcher's spoken lines were rendered offline with Kokoro-82M v1.0 (am_fenrir voice) by hexgrad, Apache License 2.0, then run through our radio effect. Only the rendered audio ships; no model or TTS code. The line text is ours (CC0). Apache 2.0 licence · see also AI use.

Tools we use but don't ship

wrangler (MIT or Apache-2.0), esbuild (MIT), Playwright (Apache-2.0), electron-builder (MIT), FFmpeg (for encoding the trailer and images).

The full third-party notices file