Credits
A list of the image assets on this site whose license requires attribution, or that we wanted to credit anyway.
Playing card art: Sai Beppu (used with permission)
| Asset | Author / source | License | Notes |
|---|---|---|---|
| BoardGameJoin logo | Sai Beppu | Created for Qdan | Used for the site logo, icons and share images |
| Icons (Material Symbols) | Apache License 2.0 | Used for on-screen icons | |
| Concentration card pictures (Noto Color Emoji) | Google — Noto Color Emoji | Apache License 2.0 | 48 optimized SVG pictures, excluding flags. |
| Werewolf role icons (Noto Emoji) | Google (source: Google Fonts — Noto Emoji) | SIL Open Font License 1.1 | Glyph outlines used for the Black Cat, Fox, Big Wolf and Fox Cub icons in Werewolf. The Big Wolf and Fox Cub icons combine glyphs (the crown is from Material Symbols). |
| Card index typeface (Roboto Condensed) | Christian Robertson (source: Google Fonts — Roboto Condensed) | SIL Open Font License 1.1 | Used for the card index (digits and A, J, Q, K). Only the glyphs we need are bundled. |
| Playing card art (Playing Cards Pack) | Kenney | CC0 1.0 | Attribution is not required, but we are crediting Kenney anyway. |
| Shogi Kuzushi collision sounds | Macif (source: Freesound — Domino pieces hit) | CC0 1.0 | Attribution is not required, but we credit it anyway. A few hits are cut from the recording and played back with volume and speed varied by strength. |
| Hanafuda card art | Louie Mantia (source: Wikimedia Commons — Category:SVG Hanafuda) | CC BY-SA 4.0 | Unmodified. Resized only for display. |
| Bozu Mekuri card art (Woodcut uta-garuta) | SONDLecT (source: woodcut-utagaruta, traced from Hishikawa Moronobu's 1680 Ogura Hyakunin Isshu in the Library of Congress) | CC0 1.0 | Attribution is not required, but we credit it anyway. Resized for display, with the emblem on the back removed. |
| Playing card art | Linux_dr (source: Wikimedia Commons — English pattern playing cards deck PLUS CC0.svg) | CC0 1.0 | Modified (recolored by suit, enlarged corner indices). |
| Shogi piece art (kanji, default for Japanese) | Ka-hu (source: kanji_light from lishogi) | CC BY 4.0 | Unmodified. Only comments and metadata were stripped for delivery. |
| Chu shogi and Dai shogi piece artwork | Qdan (lettering: Yuji Syuku / The Yuji Project Authors; shape: Ka-hu’s kanji_light) | CC BY 4.0 | Outlined lettering, inner borders for promoted pieces, and orientations by Qdan. Font licensed under SIL OFL 1.1. |
| Shogi piece art (symbols, default for English) | CouchTomato87 (source: international from lishogi) | CC BY 4.0 | Unmodified. Only comments and metadata were stripped for delivery. |
| Chess piece art | Colin M.L. Burnett (source: Wikimedia Commons — Category:SVG chess pieces) | BSD 3-Clause | Unmodified. Minified and given a viewBox for delivery. |
| Four-player chess piece art | Colin M.L. Burnett (source: Wikimedia Commons — Category:SVG chess pieces) | BSD 3-Clause | Modified: the white fill is recoloured in the four player colours and grey. |
| Mahjong tile art | FluffyStuff / riichi-mahjong-tiles | CC0 1.0 | Unmodified. Comments and whitespace stripped, and width/height removed from the root element for delivery. |
2026-09-13 / Qdan, Inc. / contact@qdan.co.jp
Last updated 2026-09-13 · Run by Qdan, Inc.