Open-Source Licenses
wilds.ai is built on open-source software. This page credits the third-party projects we redistribute or run in your browser and reproduces their licenses, as those licenses require. We're grateful to the people who made them.
Emulator cores
The retro and fantasy-console games on wilds.ai run on these open-source emulator cores, executed locally in your browser — no game code runs on our servers:
| Core | Powers | License | Copyright | Source |
|---|---|---|---|---|
| jsnes | NES (Nintendo Entertainment System) | Apache-2.0 | © Ben Firshman and contributors | github.com/bfirsh/jsnes |
| TIC-80 (libtic80) | TIC-80 fantasy console | MIT | © 2017 Vadim Grigoruk (nesbox) and contributors | github.com/nesbox/TIC-80 |
| boytacean | Game Boy / Game Boy Color | Apache-2.0 | © João Magalhães and contributors | github.com/joamag/boytacean |
License texts
Apache License 2.0
Used by jsnes and boytacean. Full text: https://www.apache.org/licenses/LICENSE-2.0.
The Apache 2.0 license permits commercial and proprietary use; we retain the
upstream copyright and NOTICE attributions as required.
MIT License
Used by TIC-80 / libtic80.
MIT License
Copyright (c) 2017 Vadim Grigoruk
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.
Uploaded games are licensed by their authors
Games, ROMs, and interactive-fiction files uploaded to wilds.ai remain the property of their respective authors and are distributed under their own terms. wilds.ai only accepts content that is public-domain or that the uploader holds the commercial rights to, and every curated cartridge cites a verifiable license-proof URL. Public-domain and freely-licensed games made by other people are playable but non-earning. See the FAQ for the full eligibility rules.
Everything else
wilds.ai also stands on a large stack of permissively-licensed open-source libraries across its web, runtime, and tooling layers. Their licenses (MIT, Apache-2.0, BSD, ISC, and similar permissive terms) ship with the respective packages in our dependency tree.