Credits
These are the sources and licenses of materials made by other people that we use in our games. Artwork, pieces, boards, sound effects, programs and guides not listed here were made by the site operator.
Materials by game
Acchi Muite Hoi (Look That Way!)
- Character and hand picturesGenerated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Backgammon
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Ball Drop
- Board, ball and diagramsOriginal Canvas/SVGLicense: Original work
Billiards
- Wood textureambientCG “Wood066” (edited)License: CC0
Blackjack
- Wood textureambientCG “Wood066” (edited)License: CC0
Bozu Mekuri (Poet Card Game)
- Card artworkEdo-period Hyakunin Isshu karuta, artist unknown (Wikimedia Commons, “Ogura Hyakunin Isshu (complete set)”)License: Public domain
- Poem texts (Japanese page only)Wikisource, “Ogura Hyakunin Isshu” (Japanese)License: Public domain
- Wood textureambientCG “Wood066” (edited)License: CC0
Bunco
- Dice, felt and guidesExisting original Blender renders, original felt and real UI screenshots with SVG arrowsLicense: Original
Buta no Shippo (Pig’s Tail Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
- Pig pictureGenerated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Calculation Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Canasta
- Cards and diagramsOriginal SVG artworkLicense: Original
Capture Go
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Card Fortune (Clock Patience)
- Cards, board and diagramsOriginal SVG/CSSLicense: Original work
- FeltExisting original synthesized textureLicense: Original work
- Guide screenshotsOriginal game capture and annotationsLicense: Original work
Checkers (Draughts)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Chess
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Chinese Checkers
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Concentration (Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Constellation Quiz
- Star positions and brightnessHoffleit, D. & Warren, W. H. Jr. 1991, The Bright Star Catalogue, 5th Revised Ed. (CDS VizieR V/50): J2000 positions, visual magnitudes and color indicesLicense: No copyright or usage terms in the catalog ReadMe; used as measured facts
- Constellation names and evening visibilityInternational Astronomical Union constellation names; transit months from the National Astronomical Observatory of Japan constellation list (8 p.m., Tokyo). Descriptions written for this quizLicense: Facts (names and dates)
Crazy Eights
- Wood textureambientCG “Wood066” (edited)License: CC0
Cribbage
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Crokinole
- Board, discs and diagramsOriginal Canvas and SVG drawingsLicense: Original work
Daifugo (President)
- Wood textureambientCG “Wood066” (edited)License: CC0
Darts
- Board and diagramsOriginal SVG artworkLicense: Original
Dominoes
- Wood textureambientCG “Wood066” (edited)License: CC0
Euchre
- Cards, table and diagramsOriginal SVGLicense: Original
Fifty-One (Japanese Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Fishing Game
- Fish pictures (fish guide)Generated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Five Card Draw Poker
- Wood textureambientCG “Wood066” (edited)License: CC0
Flag Quiz
- Flag images (all except Oman)Wikimedia Commons national flag images, resized and convertedLicense: Public domain
- Flag of OmanBased on flag-icons (© 2013 Panayiotis Lipiridis), with corrected proportionsLicense: MIT License
- English country namesBased on the United Nations short names (UN Statistics Division M49)License: Public information (facts)
Fleet Search
- Grid, ships and diagramsOriginal SVG artworkLicense: Original
Flower Puzzle
- Flowers and diagramsOriginal SVGLicense: Original
Forty Thieves Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Four in a Row
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Four Leaf Clovers Solitaire
- Cards, clover and diagramsOriginal SVGLicense: Original
Fox and Geese
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
FreeCell
- Wood textureambientCG “Wood066” (edited)License: CC0
Fukuwarai
- Faces, features and diagramsOriginal SVG shapesLicense: Original work
Gin Rummy
- Wood textureambientCG “Wood066” (edited)License: CC0
Go (Baduk / Weiqi)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Golf Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Gomoku
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Gunjin Shogi (Military Shogi)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Hachi-Hachi (Hanafuda)
- Hanafuda card artworkLouie Mantia, “Hanafuda” (Wikimedia Commons)License: CC BY-SA 4.0
- Wood textureambientCG “Wood066” (edited)License: CC0
Hana-Awase (Hanafuda)
- Hanafuda card artworkLouie Mantia, “Hanafuda” (Wikimedia Commons)License: CC BY-SA 4.0
- Wood textureambientCG “Wood066” (edited)License: CC0
Hangman (Word Guess)
- Pronunciation symbolsConverted from the CMU Pronouncing Dictionary (Carnegie Mellon University)License: BSD-style
Hasami Shogi
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Hearts
- Wood textureambientCG “Wood066” (edited)License: CC0
Hex
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Hnefatafl (Viking Board Game)
- Wood textureambientCG Wood049 / Wood066 (edited)License: CC0
I Doubt It
- Wood textureambientCG “Wood066” (edited)License: CC0
Jigsaw Puzzle
- Puzzle pictures (10)Original illustrations made for this site with Qwen-Image 2512 (a locally run image model)License: Original work (model: Apache 2.0)
Jump Action
- Glider, courses and diagramsOriginal Canvas/SVGLicense: Original work
Juroku Musashi
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Kings in the Corner
- Cards and diagramsOriginal SVGLicense: Original work
- FeltExisting original synthesized textureLicense: Original work
- Guide screenshotsOriginal game capture and annotationsLicense: Original work
Klondike Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Koi-Koi (Hanafuda)
- Hanafuda card artworkLouie Mantia, “Hanafuda” (Wikimedia Commons)License: CC BY-SA 4.0
- Wood textureambientCG “Wood066” (edited)License: CC0
Liar's Dice
- Dice, felt, calls and diagramsOriginal Yacht Blender renders and generated felt; original front-face SVG; actual game screens with original annotationsLicense: Original
Ludo
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Mahjong (Two-Player Riichi)
- Wood textureambientCG “Wood066” (edited)License: CC0
Mahjong Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Mancala
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Mawari Shogi (Shogi Board Race)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Maze
- Hamster illustrationGenerated by the site operator with the Qwen-Image model (Apache 2.0)License: Original (generated)
Maze Collect
- Graphics, diagrams and soundsOriginal SVG and original project assetsLicense: Original work
Mexican Train
- Tiles and actual-screen diagramsOriginal number SVG and project Domino dot positions; actual game screens with original annotationsLicense: Original work
- wood_light.webpReused Ludo texture based on ambientCG Wood049License: CC0
Mini Shogi
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Napoleon (Japanese Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Nine Men’s Morris
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Oicho-Kabu (Japanese Card Game)
- Hanafuda card artworkLouie Mantia, “Hanafuda” (Wikimedia Commons)License: CC BY-SA 4.0
- Wood textureambientCG “Wood066” (edited)License: CC0
Old Maid
- Wood textureambientCG “Wood066” (edited)License: CC0
Poker Squares
- Cards, courts and backsOriginal Klondike SVG artwork, adapted from the Whist rendererLicense: Original
- FeltOriginal Klondike felt.webpLicense: Original
- Explanation images and diagramsActual game screenshots, original annotations and SVGLicense: Original
Price Learning Lab
- Cards and diagramsOriginal SVGLicense: Original work
Pyramid Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Quick Draw Duel
- Brush lettering fontYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
- Silhouette charactersGenerated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Reversi
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Rock Paper Scissors Roulette
- Hand picturesGenerated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Royal Game of Ur
- Wood textureambientCG “Wood066” (edited)License: CC0
Runner: Garden Hurdles
- Runner, garden and diagramsOriginal Canvas/SVGLicense: Original
SameGame
- Tiles and diagramsOriginal geometric SVG artworkLicense: Original
Scorpion Solitaire
- Cards, felt and diagramsExisting original SVG, original felt and game screenshotsLicense: Original work
Senet (Ancient Egyptian Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Seven Bridge (Japanese Rummy)
- Wood textureambientCG “Wood066” (edited)License: CC0
Sevens (Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Shisen-Sho
- Wood textureambientCG “Wood066” (edited)License: CC0
Shogi (Japanese Chess)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Shogi Kuzushi
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Six Card Golf
- Cards and diagramsOriginal site SVG artworkLicense: Original
Ski Jump
- Hill, athlete and diagramsOriginal Canvas/SVGLicense: Original work
Spades
- Wood textureambientCG “Wood066” (edited)License: CC0
Speed (Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Spider Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Spite and Malice
- Cards and diagramsOriginal SVGLicense: Original work
- Sound effectsOriginal shared effectsLicense: Original work
Steady Maze
- Graphics and soundsOriginal SVG and original project assetsLicense: Original work
Sugoroku
- Character illustrations on the special-square pop-upsCreated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Ten Thousand Dice
- Dice, felt and screen guidesExisting original yacht artwork and actual UI with original annotationsLicense: Original work
Tennis
- Player picturesGenerated by the site owner with the image model Qwen-Image (Apache 2.0)License: Original (generated)
Three-Flower Garden (Idle Clicker)
- Pots, flowers, drops and diagramsOriginal SVGLicense: Original
Tower Defense
- Graphics and soundsOriginal SVG and original project assetsLicense: Original work
TriPeaks Solitaire
- Wood textureambientCG “Wood066” (edited)License: CC0
Tsume Shogi (Shogi Puzzles)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional (kanji) piecesYuji Boku (The Yuji Project Authors)License: SIL Open Font License 1.1
Tsumego (Go Problems)
- Wood textureambientCG “Wood049” (edited)License: CC0
Twisty Cube
- Numbered cube, problems and diagramsOriginal SVG and generated puzzlesLicense: Original work
Usunoro (Four-of-a-kind Grab)
- Cards, tokens and diagramsOriginal SVG/CSSLicense: Original work
War (Card Game)
- Wood textureambientCG “Wood066” (edited)License: CC0
Whist
- Cards and diagramsOriginal SVG artworkLicense: Original
- FeltOriginal project felt reused from KlondikeLicense: Original
World Countries Quiz
- World map shapes and capital locationsMade from Natural Earth (1:10m Admin 0 Countries, Japan point-of-view version; disputed areas; populated places; 1:50m lakes), simplified, with disputed areas drawn to the Japanese government’s viewLicense: Public domain
- English country namesBased on the United Nations short names (UN Statistics Division M49)License: Public information (facts)
Xiangqi (Chinese Chess)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
- Characters on the traditional pieces and the riverNoto Serif TC / Noto Serif SC (Google)License: SIL Open Font License 1.1
Yacht (Dice Game)
- Wood textureambientCG “Wood049” and “Wood066” (edited)License: CC0
Yukon Solitaire
- Cards and diagramsOriginal SVGLicense: Original
Hanafuda card artwork
The hanafuda cards are the 48 “Hanafuda” designs by Louie Mantia, published on Wikimedia Commons, displayed without modification. They are licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0). The illustrated rule diagrams that include the card artwork are published under the same license.
Voices
Some voices were made with the speech synthesis software VOICEVOX; the character credits are shown on each game page.
Fonts
Some fonts used in the games are published under the SIL Open Font License 1.1. The license text is included with the game files.