About

Qdan Inc. is an app studio in Tokyo. We plan, build, and operate games for people gathered in one place — and tools that make everyday life a little more playful.

The apps we plan, build, and operate. See all apps →

What we do

We plan, build, and operate smartphone apps in-house, mostly party games. From planning and development to design, operations, and support, we team up with engineers and designers inside and outside the company, producing every stage of our apps and games ourselves.

We keep decisions fast and let the same eyes follow every detail from planning to operations — we use that to engage honestly with what makes things fun, and to deliver services from many different angles.

Co-representatives

  • Keisuke Saito

    Born 1989 in Miyagi Prefecture. Graduated from Yokohama National University. Lead engineer, responsible for the design and development of our apps.

  • Kazuki Sato

    Born 1989 in Yamanashi Prefecture. Graduated from Yokohama National University. Producer and director, responsible for everything other than system development.

Adapting analog games and web services

Working closely with rights holders to bring new fans to the original works, we officially adapt analog games and web services into apps. We care about UI/UX that keeps the original games fun, and about making each app easy to use on a smartphone.

Selected collaborations:

  • Word Wolf

    Word Wolf

    Original game by Susumu Kawasaki (Kawasaki Factory)

  • Keikenchi

    Keikenchi

    Planning & supervision by the website "Todofuken-Shikuchoson" (press release)

  • God of Walk Koo-Ron-Do God of Free Time God of Wits

    Four "Yuru-ge" titles

    Business partnership with Drosselmeyer Shokai, who create and supervise the originals (press release)

  • Dokopa

    Dokopa

    Branding & design by Sai Beppu. Inside Dokopa, we have brought titles online such as "Quiz Iisen Ikima SHOW!" (Arclight), Goita (Noto Goita Preservation Society), and "Minna de DanDan Tier!" (TANSAN).

Media coverage

We're grateful to the following media for featuring our apps.

TV & web shows
"Ousama no Brunch", "School Kakumei!", "Matsumoto-ke no Kyujitsu", "Kimura-saaan!" (appeared as the app's developer)
Print media
the Hokkoku Shimbun, nicola, Seventeen, Oggi, and others
YouTube
Gameplay and review videos by many VTubers, game streamers, and TV personalities

Inquiries

We welcome inquiries about press and media coverage, adapting board and card games into apps, planning games built on existing IP, collaborations with TV, radio, and events, and smartphone app development. Feel free to reach out by email.

Contact us →

Company profile

Company
Qdan Inc. (株式会社Qdan)
Founded
April 5, 2022
Office
Kichijoji PARCO 8F, MIDORI.so, 1-5-1 Kichijoji Honcho, Musashino-shi, Tokyo 180-0004, Japan
Representatives
Keisuke Saito and Kazuki Sato (co-representatives)
Capital
3,000,000 JPY
Business
Planning, development, and operation of smartphone apps (party games and tools)
Banks
Sumitomo Mitsui Banking Corporation, Tama Shinkin Bank, GMO Aozora Net Bank
Contact
[email protected]