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License Agreement

Copyright (c) 2025 Inoriac (DesktopPet)

This project is a derivative work based on MateEngine. Portions of this software and assets are Copyright (c) 2025 Johnson Jason and Shiny.

This project is licensed under the MateEngine Pro License (v2.1). You may not use this file except in compliance with the License.

MateEngine Pro License (v2.1)

Copyright © 2025 Johnson Jason

This license governs the use, modification, and distribution of the MateEngine software and any derivative works. By using this software, you agree to the following terms:

1. Grant of Use and Modification

You may use, study, and modify the MateEngine source code privately. You may not distribute, publish, or make any modified or unmodified version of MateEngine publicly available except as explicitly allowed below.

2. Source Code Disclosure Requirement (Copyleft)

If you modify MateEngine, include its source in another project, or create a derivative work, you must:

  • Publish the complete, corresponding source code of your version,
  • Under this same license,
  • On a publicly accessible, non-commercial code-hosting platform (e.g., GitHub, GitLab, Codeberg),
  • With no paywall, registration, or monetization of any kind.

3. Distribution Restrictions

Distribution is only permitted on open-source code-hosting platforms for non-commercial use. Distribution or publication of MateEngine or any derivative on any commercial or binary distribution platform (including but not limited to Steam, Epic Games Store, itch.io, GameJolt, Microsoft Store, or similar) is strictly prohibited, regardless of whether it is free or paid. Written permission from the copyright holder is required for any exception.

4. Modding and Extensions

You may create mods, extensions, or plugins for MateEngine under the following conditions:

  • Original Code Mods: Mods that contain original code only (no MateEngine source) may be distributed anywhere, including Steam Workshop or similar, provided they are non-commercial and do not claim official affiliation.
  • Source Modifying Mods: Mods that include or modify MateEngine source code must:
    • Be open-source under this same license,
    • Be published on GitHub (or an equivalent open-source repository),
    • Be distributed only via the official MateEngine Workshop or your own open-source repository link.

5. Commercial Use

Commercial use of MateEngine or any derivative work is strictly prohibited. You may not sell, license, rent, or otherwise monetize any version or service based on MateEngine. You may not host MateEngine (modified or not) behind any paid access or donation-gated system.

6. Attribution

All distributions must retain the original copyright notice and this license text in full.

7. Warranty

MateEngine is provided “as is” without warranty of any kind.

8. Termination

Any violation of this license immediately terminates all granted rights.

© 2025 Johnson Jason and contributors. All rights reserved.

ASSETS LICENSE (REQUIRED ATTRIBUTION)

ASSETS (Audio, Visual, etc.)

All assets included in this project derived from MateEngine, including but not limited to:

  • Audio files
  • Visual assets (images, models, textures, animations)
  • Fonts, icons, and UI elements

are © 2025 Shiny and are strictly COPYRIGHTED.

These assets are NOT licensed for commercial use in any form. You may NOT use them in commercial projects, redistribute them separately, or resell them.

Personal, educational, or non-commercial use is allowed, but attribution to the original author ("Shiny") is required.