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Seasons of Books and Keys is a mystery narrative adventure based on Honobu Yonezawa’s novel The Season of Book and Key. A Nintendo Switch version is planned for a worldwide digital release in Winter 2026, according to a report published by Nintendo Insider on August 29, 2026. No exact launch date or price has been established.
What is Seasons of Books and Keys about?
The story follows Jiro Horikawa and Shimon Matsukura, two high school students on the library committee. According to the Steam listing, they investigate problems brought to the library, including an unopened safe, missing exam questions and a student’s final book. The cases gradually expose personal secrets.
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The game adapts Honobu Yonezawa’s novel The Season of Book and Key. The Steam listing says Yonezawa also wrote an additional episode for the game. It describes the presentation as featuring rich-color illustrations and full voice acting. Steam store listing
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When is it coming to Nintendo Switch?
Nintendo Insider reported on August 29, 2026 that the Switch version is planned for worldwide digital release through Nintendo eShop in Winter 2026. That is a release window, not a confirmed day: an exact launch date, price and regional eShop listing have not been established. Nintendo Insider
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The available information does not establish Switch-specific details such as playtime, branching choices, difficulty or performance. The Steam listing’s language information applies to the PC store page and should not be taken as confirmation of Switch language support.
What languages and audio does the Steam listing show?
The Steam store listing names English, Simplified Chinese, Traditional Chinese and Japanese for text, and lists Japanese as the full-audio language. This describes the PC listing; it does not confirm which text or audio options will be available on Switch.
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| Steam listing detail | Information shown |
|---|---|
| Text languages | English, Simplified Chinese, Traditional Chinese and Japanese |
| Full audio | Japanese |
| PC availability | Coming soon |
What to consider if you are deciding whether it is for you
- Story focus: The stated premise centers on mysteries arising from library requests and the secrets behind them, rather than action-driven gameplay.
- Adaptation: It is based on Yonezawa’s novel and includes an additional episode written for the game.
- Presentation: The Steam listing describes illustrations and full voice acting, with Japanese audio specified there.
- Switch purchase details: The reported Winter 2026 window is useful for planning, but there is no confirmed date or price in the available announcement information.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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