OpenSky is the open-source monorepo for OpenSky's webapp, game client, API, matchmaker, game server, and shared game logic. OpenSky is an open-source version of the original Skyweaver game, originally created by Horizon Blockchain Games Inc.
- https://github.com/horizon-games/OpenSky (this one)
- https://github.com/horizon-games/Skyweaver-contracts
Copyright (c) 2026 Sequence Platforms ULC
This project uses the following licensing structure:
- Source code — Apache License 2.0.
- Creative assets are not included in this repository, and are not published or licensed for use anywhere, including at assets.skyweaver.net. They remain the proprietary property of Sequence Platforms ULC.
- Trademarks — Skyweaver Trademark Policy. The "Skyweaver" name, logo, and branding may not be used in any derivative project or product. "OpenSky" is an unreserved community name; its use does not imply endorsement or official status.
The original Skyweaver card collection is the production Skyweaver
Assets ERC-1155 contract at
0x631998e91476DA5B870D741192fc5Cbc55F5a52E,
as published in the
Skyweaver contracts repository.
That contract address identifies the original collection. The collection is
closed. Owners may continue to hold, use, display, transfer, and trade those cards,
including when playing OpenSky. You may not use the original cards or their contract to mint or tokenize new cards, to charge for access to them, or to create clones or replicas of the original cards.
"OpenSky" is a community name, not a guarantee of authenticity. Do not rely on the name alone. A card belongs to the original collection only if it is in the published original collection contract. Verify the issuer and contract address. Never share private keys. Treat unsolicited wallet-connection or airdrop messages as suspicious.
Bad actors may impersonate this project, its contributors, Sequence Platforms ULC, or its affiliates, to promote fake tokens, phishing sites, fraudulent airdrops, or other scams. Sequence Platforms ULC and its affiliates will NEVER:
- DM you asking for funds or private keys
- Offer token giveaways or airdrops tied to this repository
- Ask you to connect your wallet through unofficial channels
If you encounter any suspicious activity, do not engage. Report it through official channels of Sequence Platforms ULC.
Sequence Platforms ULC and its affiliates do not operate, maintain, or update this repository, any fork or deployment of it, or any smart contract referenced in it, and are not responsible for any third-party forks, deployments, integrations, or projects that reference this repository.
No warranty. THE CODE, CONTRACTS, AND ANY OTHER MATERIALS IN THIS REPOSITORY ARE PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. SEQUENCE PLATFORMS ULC AND ITS AFFILIATES DO NOT WARRANT THAT THIS REPOSITORY, ANY FORK OR DEPLOYMENT OF IT, OR ANY RELATED SMART CONTRACT WILL BE ACCURATE, RELIABLE, SECURE, OR ERROR-FREE, OR THAT ANY DIGITAL ASSET REFERENCED HEREIN WILL RETAIN ANY PARTICULAR VALUE.
Limitation of liability. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL SEQUENCE PLATFORMS ULC, ITS AFFILIATES, PAST CONTRIBUTORS, OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY OF ANY KIND -- INCLUDING DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, OR DIGITAL ASSETS -- WHETHER IN AN ACTION OF CONTRACT, TORT (INCLUDING NEGLIGENCE), OR OTHERWISE, ARISING FROM OR IN CONNECTION WITH THIS REPOSITORY, ANY FORK OR DEPLOYMENT OF IT, THE ORIGINAL CARDS, OR ANY SMART CONTRACT REFERENCED IN IT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Release. BY ACCESSING, FORKING, DEPLOYING, OR OTHERWISE USING THIS REPOSITORY, ANY DERIVATIVE OF IT, OR THE ORIGINAL CARDS, YOU RELEASE SEQUENCE PLATFORMS ULC, ITS AFFILIATES, AND THEIR RESPECTIVE OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS FROM ANY AND ALL CLAIMS, DEMANDS, AND DAMAGES OF EVERY KIND, KNOWN OR UNKNOWN, ARISING OUT OF OR IN ANY WAY RELATED TO YOUR USE OF THIS REPOSITORY, ANY FORK OR DEPLOYMENT OF IT, THE ORIGINAL CARDS, OR ANY RELATED SMART CONTRACT, INCLUDING ANY DISPUTES WITH OTHER USERS OR THIRD-PARTY OPERATORS OF FORKS, DEPLOYMENTS, OR MARKETPLACES.
Severability. IF ANY PART OF THIS DISCLAIMER OR RELEASE IS FOUND UNENFORCEABLE, THE REMAINDER WILL REMAIN IN FULL FORCE AND EFFECT.