SCRAP Sets Detective X Case File #3: The Island Not on the Map for December 2
SCRAP Publishing will release DETECTIVE X CASE FILE #3 "The Island Not on the Map" on December 2, 2026, at bookstores nationwide, e-commerce sites including Amazon, and permanent Real Escape Game venues. The price is 5,500 yen, tax included.
1 source 1h ago
Reporting from 1 source: Denfaminicogamer.
Why it matters
The series has passed 200,000 cumulative copies in print as of June 2026, and both earlier entries were slated for reprinting right after release, so the delayed third kit arrives with a sales record already behind it.
Key Facts
- DETECTIVE X CASE FILE #3 "The Island Not on the Map" releases on December 2, 2026, at 5,500 yen including tax.
- The title was originally scheduled for August 12, 2026, and was postponed for manufacturing reasons.
- The DETECTIVE X series has surpassed 200,000 cumulative copies in print as of June 2026.
- E-commerce reservations for the title open at 12:00 on November 19, 2026.
- A Shusuke Michio signing event is set for December 6 at Maruzen Marunouchi Main Store, with a DETECTIVE X Exhibition on December 5 and 6.
The title was originally scheduled for August 12, 2026, and was postponed for manufacturing reasons. It is the third entry in the DETECTIVE X series, a full-scale crime investigation game co-created by SCRAP and Naoki Prize-winning author Shusuke Michio, in which players work through realistic case materials such as witness statements, crime-scene photos, video, and audio. The new case is set in a quiet port town and opens with the stabbing death of a high school girl who loved the sea, while her grandfather vanishes along with a large amount of gold bullion. Players sort through police records, a mysterious world map, and a jigsaw puzzle the victim was holding. Actor Shiro Sano appears as an important character. E-commerce reservations open at 12:00 on November 19.
Shusuke Michio's signing event, shelved when the release slipped, is back on for December 6 at the Maruzen Marunouchi Main Store in Tokyo. The store's fourth-floor event space will also host a DETECTIVE X Exhibition for two days only, December 5 and 6, with behind-the-scenes off-shots from the series' production and rough designs by Michio, displayed with his own comments.
The kit itself is a boxed set measuring 294 by 221 by 31mm, holding an invitation, envelopes 0 through 5, and a final envelope. There is no time limit, play runs about 3 to 4 hours, and the player count is open with 1 to 5 recommended. The vanished gold bullion is specified at 800 million yen.
Early purchase bonuses differ by store:
- Real Escape Game venues and Tokyo Mystery Circus, plus SCRAP GOODS SHOP online reservations: original sticky notes
- Miraiya Shoten: original postcard
- Kumazawa Shoten: original notebook
- Village Vanguard: original clear file
- Other participating bookstores: original masking tape or a ballpoint pen with the revived logo, the pen having been handed out at the 2024 Real Escape Game Festival at Makuhari Messe
Michio, who calls the story his largest scale yet, said: "It will absolutely betray neither your expectations nor your ideals." The ISBN is 978-4-86837-012-3.
Written with AI by Yomimono from the 1 cited source below, including Japanese-language reporting where cited. See our editorial policy.
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