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▼Basic pack [dynamiclink href="https://store.steampowered.com/app/1322290/"] "The Case Book of Arne" is a mystery ADV in which Lynn, the daughter of a nobleman who longs to become a vampire, and Arne, a legendary vampir…
Steam
The Case Book of Arne
Also known as The Case Book of Arne, case book of arne, cboa
A vampire and a girl... who are they? The two of them have a secret and solve a strange case... In a world where paranormal activity takes place, "Player" solves a case in which a non-human becomes a suspect. Such a "detective adventure" is coming to STEAM.
Last update
17 May 2026
Players now
1
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- March 2025
- ▼Basic pack https://store.steampowered.com/app/1322290/ Period: 3/14 2:00 - 3/21 2:00（JST） "The Case Book of Arne" is a mystery ADV in which Lynn, the daughter of a nobleman who longs to become a vampire, and Arne, a le…Store
- January 2023
- Update on the official FANBOX for "The Case Book of Arne".Happy New Year! On the official FANBOX of "The Case Book of Arne," we have released a new New Year's illustration newly drawn by Harutaro-sensei. In addition, a message from the two Harumurasaki and a glimpse image of t…
- March 2021
- Dear fans, The latest entry in The Case Book of Arne, Teil 4, is now available as DLC. It's priced at 2.99 USD. See you at the festival! https://store.steampowered.com/app/1550440/ https://store.steampowered.com/app/132…Store
- Dear fans, The Case Book of Arne Teil 4 "Interlude," the epilogue to Case 1 comes to Steam as a $2.99 DLC! Lynn struggles to acclimate to living with Arne. A festival for monsters beckons to her-- plenty of fun minigame…Store
- October 2020
- A vampire king solves murder mysteries Sherlock Holmes-style! This long-awaited full-on mystery-adventure game is finally being released worldwide! The Case Book of Arne is now available on Steam! Dear fans, The Case Bo…Store
- Dear fans, News Flash: The Case Book of Arne The date for the global release of The Case Book of Arne has been set for October 29th! Supported languages will be English, Japanese and Simplified Chinese. We hope players…Store
- September 2020
- Dear fans, “The Case Book of Arne", a popular game from Game magazine, will be released on Steam this fall. Japanese, English and Simplified Chinese versions of the game are planned for release. ”Arne's Case Files" is a…Store
- May 2020
- Dear fans, We released Angels of Death Episode Eddie and Noel The Mortal Fate Season 9 today but at the same time we also revealed store pages for two other Game Magazine titles! Tsugunohi and The Case Book of Arne. Ple…Store
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