DSH ROLEPLAY ENGINE PROPRIETARY LICENSE Version 1.0 — 3 November 2026 Copyright © 2026 LeonYellow (GitHub: LiranHuang). All Rights Reserved. 1. OWNERSHIP The DSH Roleplay Engine software, including its source code, documentation, artwork, tests, and associated materials (collectively, the “Software”), is owned by LeonYellow (GitHub: LiranHuang) and is protected by applicable copyright and other intellectual-property laws. 2. LIMITED EVALUATION PERMISSION Subject to this License, you may view the source code, download one copy, and run the Software locally solely for personal, non-commercial evaluation. GitHub-hosted viewing and forking are permitted only to the extent required by GitHub’s platform functionality and do not grant any additional license. 3. RESTRICTIONS Unless you have prior written permission from the copyright owner, you may not: (a) copy the Software except for the single evaluation copy allowed above; (b) modify, adapt, translate, or create derivative works from the Software; (c) publish, redistribute, sublicense, sell, rent, lease, or otherwise transfer the Software or any substantial portion of it; (d) use the Software or any derivative work for commercial, production, revenue-generating, hosted, or software-as-a-service purposes; (e) remove, obscure, or alter any copyright, authorship, attribution, or proprietary notice; or (f) represent the Software or any derivative work as your own work. 4. CONTRIBUTIONS No right to accept or use contributions is implied. Any contribution requires separate written terms accepted by the copyright owner. Opening an issue or pull request does not transfer ownership and does not grant a license. 5. THIRD-PARTY MATERIALS Third-party dependencies, character cards, world books, and other external materials remain subject to their respective licenses and rights. This License does not grant rights to those materials. 6. NO TRADEMARK LICENSE No permission is granted to use the names “DSH Roleplay Engine”, “LeonYellow”, or associated names, logos, or branding to imply endorsement or affiliation. 7. TERMINATION Any breach of this License automatically terminates the permission granted in Section 2. Upon termination, you must stop using and delete all copies of the Software in your possession or control. 8. DISCLAIMER OF WARRANTY THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. USE IS AT YOUR OWN RISK. 9. LIMITATION OF LIABILITY TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE COPYRIGHT OWNER SHALL NOT BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY ARISING FROM OR RELATED TO THE SOFTWARE OR ITS USE. 10. OTHER USES AND CONTACT Any use not expressly permitted by this License requires prior written permission from the copyright owner. Permission requests may be submitted via: https://github.com/LiranHuang/dsh-roleplay-engine/issues This is a proprietary license, not an open-source license.