Third-Party Notices
Credits
Open-source software (bundled in the shipped build)
| Component | Version | License |
|---|---|---|
| three.js | 0.185.1 | MIT |
| @dimforge/rapier3d-compat (Rapier) | 0.19.3 | Apache-2.0 |
| steamworks.js | 0.4.0 | MIT |
| zod | 4.4.3 | MIT |
three.js — MIT
The MIT License Copyright © 2010-2026 three.js authors 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.
Rapier (@dimforge/rapier3d-compat) — Apache License 2.0
Copyright the Rapier / dimforge contributors. Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
steamworks.js — MIT
MIT License Copyright (c) 2022 Gabriel Francisco Dos Santos 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.
zod — MIT
MIT License Copyright (c) 2025 Colin McDonnell 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.
Electron (packaged desktop build only)
The packaged desktop build ships Electron 43.2.0, which bundles
Chromium and Node.js inside the runtime.
Electron sits in the game repo's build-time dependencies everywhere except
this one output, which is why an earlier pass of this page and of
NOTICE.md missed it (hub #1123).
| Component | License | Where it ships |
|---|---|---|
| Electron 43.2.0 | MIT | LICENSE.electron.txt, in the packaged app directory |
| Chromium (bundled in Electron) | BSD-3-Clause + a large third-party set | LICENSES.chromium.html, in the packaged app directory |
| Node.js (bundled in Electron) | MIT + its own bundled deps | Also inside LICENSES.chromium.html |
This obligation is already met on disk, not just in this document: Electron's
own packaging step copies its bundled LICENSE and
LICENSES.chromium.html files into every packaged build as
LICENSE.electron.txt and LICENSES.chromium.html,
verified against a real packaged build on 2026-09-12. Nothing needed to be
added to the packaged build itself — this section only fixes what this
page and NOTICE.md say ships.
Fonts (bundled in the game)
The bundled variable fonts are Google Fonts releases distributed under the SIL Open Font License 1.1 (OFL), which permits bundling and use in a game without a runtime notice requirement but are credited here for completeness:
- Bitcount Single
- Caveat
- Dancing Script
- Luckiest Guy
- Sixtyfour / Sixtyfour Convergence
- Tektur
Each is © its respective Google Fonts contributors, licensed under the SIL Open Font License, Version 1.1 (https://scripts.sil.org/OFL).
Splice samples
Steve licensed the splice samples used in the soundtrack under a royalty-free license with no attribution requirement. No credit is owed and none is listed here on purpose — this is not an omission.