Credits and Attribution
Effective August 6, 2026
Roundcade's music is original and owned by Roundcade. Some data and artwork come from other people and are credited below as their licences require. Where a licence asks for attribution, this page is that attribution.
Music
All music on Roundcade is by DJ Apollo Production, produced exclusively for Roundcade. Copyright Roundcade 2026. All rights reserved. It is not licensed for use, reproduction, or distribution outside Roundcade.
Word and answer banks
Categories answer banks are derived from the Corpora project by Darius Kazemi and contributors, dedicated to the public domain under CC0 1.0. Roundcade normalizes, combines, deduplicates and supplements the source lists for gameplay.
Town and city names are derived from the GeoNames cities15000 gazetteer extract, licensed under Creative Commons Attribution 4.0.
Given names are derived from Wikidata entities classified as given names, using their English labels. Wikidata structured data is dedicated to the public domain under CC0 1.0.
Trivia questions are from the Open Trivia Database (opentdb.com), licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. HTML entities were decoded and duplicates removed; no question was altered in meaning.
Job titles are derived from the O*NET 30.3 Database Job Titles file by the U.S. Department of Labor, Employment and Training Administration, used under Creative Commons Attribution 4.0. O*NET is a trademark of the U.S. Department of Labor, Employment and Training Administration. Roundcade is not endorsed by them.
Artwork
Game card icons are from game-icons.net by Lorc, Delapouite and contributors, licensed under Creative Commons Attribution 3.0. Backgrounds are removed so each icon can be tinted to its game's accent colour.
Chess piece artwork is the Cburnett set by Colin M.L. Burnett, from Wikimedia Commons, licensed under Creative Commons Attribution-ShareAlike 3.0.
Sound
Sound effect one-shots are from Kenney, released under CC0 1.0 and free for commercial use with no attribution required. They are credited here as a courtesy, and are layered over Roundcade's own synthesized audio.
Questions
If you believe something here is credited incorrectly or is missing, please write to socialdesignlab.ph@gmail.com and we will correct it.