Dataset Card for OpenGameArt-Mixed-Licenses

Dataset Summary

This dataset contains game artwork assets collected from OpenGameArt.org that are available under multiple licenses simultaneously. This dataset includes assets where creators have made their work available under two or more license options. The dataset includes various types of game assets such as 2D art, 3D art, concept art, music, sound effects, textures, and documents along with their associated metadata, all offering flexible licensing terms for different usage scenarios.

Languages

The dataset is primarily monolingual:

• English (en): All asset descriptions and metadata are in English

Dataset Structure

Data Files

The dataset consists of:

• Asset files organized by type (stored across multiple ZIP archives)
• Corresponding metadata in compressed JSONL format (*.jsonl.zst) using Zstandard compression, categorized by asset type:
  • 2D_Art.jsonl.zst
  • 3D_Art.jsonl.zst
  • Concept_Art.jsonl.zst
  • Document.jsonl.zst
  • Music.jsonl.zst
  • Sound_Effect.jsonl.zst
  • Texture.jsonl.zst
• An archive_index.csv file mapping asset filenames to their respective archive files

Data Fields

• url: URL to the asset page on OpenGameArt.org
• title: Title of the artwork/asset
• author: Creator of the asset
• author_url: URL to the creator's profile page
• post_date: Date when the asset was posted
• art_type: Type of asset (2D Art, 3D Art, Concept Art, Document, Music, Sound Effect, Texture)
• tags: Array of tags associated with the asset
• licenses: Array of licenses applicable to the asset (each entry contains multiple license options)
• collections: Array of collections the asset belongs to
• preview_images: Array of URLs to preview images of the asset
• description: Description of the asset provided by the creator
• files: Array of file information, each containing:
  • url: URL to download the file
  • name: Filename
  • size: File size

Data Splits

The dataset is organized into separate splits by asset type:

Split	Description	Number of Examples
2d_art	2D game artwork and sprites	2,087
3d_art	3D models and assets	498
concept_art	Concept artwork and designs	93
document	Text-based game assets like names, stories	2
music	Game music and background tracks	929
sound_effect	Sound effects for games	165
texture	Textures for game development	351

Total dataset size: 4,125 entries

License Information

Multi-Licensing Structure

Each work in this dataset is available under multiple licenses simultaneously. This multi-licensing approach provides users with flexibility, allowing you to choose the license that best aligns with your project's requirements.

Choosing a License for an Asset

Since assets often list multiple available licenses in their metadata, you need to select which one applies to your use case:

• For Use: You must select and comply with only one of the licenses explicitly offered by the creator for that specific asset. You are not required to comply with all listed licenses simultaneously.
• For Redistribution/Editing: While you only need to follow one license for your use, it is strongly encouraged to include or maintain all the original license options when you redistribute or share modified versions. This ensures the asset remains usable by the widest possible range of future projects and respects the creator's original intent.

How to Use Assets from this Dataset

1. Check Available Licenses: For any specific asset you wish to use, consult the "licenses" field in its associated metadata file to identify the licenses the creator has made it available under.
2. Select a License: Choose one license from the available options listed in the metadata. You can only use licenses explicitly offered by the creator for that asset.
3. Comply with Requirements: Adhere strictly to all terms and conditions of the single license you have selected.

Summary of Common License Requirements

• Attribution (Required for CC-BY, CC-BY-SA, OGA-BY, GPL): You must give appropriate credit to the creator.
• Share-Alike (Required for CC-BY-SA, GPL): If you create derivative works, you must distribute them under the same or a compatible license.
• No Legal Requirement for Attribution (CC0): While not legally required, attribution is still greatly appreciated by creators.

Dataset License Overview and Attribution Files

The table below shows the distribution of primary licenses across the works in this dataset and the corresponding files containing detailed attribution information.

License	Works	Attribution File
Creative Commons Attribution-Share Alike 3.0 (CC-BY-SA 3.0)	2,305	ATTRIBUTION_CC-BY-SA-30.md
Creative Commons Attribution 3.0 (CC-BY 3.0)	2,192	ATTRIBUTION_CC-BY-30.md
GNU General Public License 3.0 (GPL 3.0)	1,913	ATTRIBUTION_GPL-30.md
GNU General Public License 2.0 (GPL 2.0)	1,629	ATTRIBUTION_GPL-20.md
OpenGameArt Attribution 3.0 (OGA-BY 3.0)	1,108	ATTRIBUTION_OGA-BY-30.md
Creative Commons Attribution 4.0 (CC-BY 4.0)	1,100	ATTRIBUTION_CC-BY-40.md
Creative Commons Attribution-Share Alike 4.0 (CC-BY-SA 4.0)	722	ATTRIBUTION_CC-BY-SA-40.md
Creative Commons Zero (CC0)	669	ATTRIBUTION_CC0.md
OpenGameArt Attribution 4.0 (OGA-BY 4.0)	107	ATTRIBUTION_OGA-BY-40.md

Full attribution details, listing creators and their works under each license, are located in the ATTRIBUTION/ directory.

Further License Information

For detailed information about each license type, please refer to their official sources:

• Creative Commons (CC) Licenses: https://creativecommons.org/licenses/
• GNU General Public Licenses (GPL): https://www.gnu.org/licenses/
• OpenGameArt Attribution (OGA-BY) Licenses:
  • OGA-BY 3.0 FAQ: https://opengameart.org/content/oga-by-30-faq
  • OGA-BY 4.0 FAQ: https://opengameart.org/content/oga-by-40-faq