Game
- Mark Batagelj — design, development, Hanafuda Legends / ZenDeck Interactive, Novo mesto, Slovenia
Art & design
- Squideo — badges, tier icons, avatar frames, Hana coin art
Music & voice
- Kokichi / NAE Project — voice lines and soundtrack
- Background tracks "Traditional Japanese", "Ronin", "Envelope", "Epic Japanese Orchestral", "Warrior" — licensed stock music
Card decks
- Traditional Kyoto pattern — public-domain design
- Juan Camilo Orjuela — ENERO: EL PINO
- Suryong — Hokkaido, Echigo, Hanamaki, Awa, Bizen (without metallic overprints), Super-Deformed Hanafuda, and the metallic/special variants
- Louie Mantia — Wikipedia hanafuda illustrations (used with permission)
- Hanafooda — Hawaii Grinds deck
- Suryong — Yamagata Pattern
- Traditional — Korean Hwatu
- Traditional — Dalian Pattern
- Suryong — Osaka Pattern (Mushi Style)
- Suryong — Collectible Hanafuda
- Traditional — Standard Kyoto Pattern (Five Gold Brights)
- Suryong — Yamagata Pattern (with metallic overprints)
- Suryong — Cartoon Hanafuda
- Luiza Kwiatkowska — Deck by OpenCards
- Charlotte @シャーロット — Doitsu-Hanafuda
- Artist to be confirmed: Hana Cards
Library artworks
- Kawase Hasui (1920s) — ukiyo-e / shin-hanga prints — public domain
Translations
- Japanese, Chinese, Korean, Spanish, German, Portuguese, French, Hindi, Russian, Arabic — community and professional translators
- Built with React, Vite, Node.js, Socket.IO, MongoDB; hosted on Vercel, Railway and Cloudflare; apps with Capacitor. Lottie animations via lottie-web.
- Open-source licences — npm package licence list