The Case Book of Arne
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.
- Price:$4.99
- Release Date:10/29/2020
- Franchise:Vaka Game Magazine
- Developers:
- Publisher:Vaka Game Magazine
- Last Updated:6/30/2025
- Steam App Id:1322290
The Case Book of Arne
- Windows
- Mac
- Linux
Steam Charts, Stats, and Live Player Count
At the moment, The Case Book of Arne has 2 concurrent players online and in-game. This is 60% lower than its previous all-time peak of 5 players achieved on 6/7/2025.
Review History Chart
Track historical review trends and overall ratings for The Case Book of Arne. It has received a total of 327 reviews on the Steam store and achieved a Player Score of 83 (Very Positive).
Price History Chart
Track historical price changes and trends for The Case Book of Arne. Right now, it costs $4.99 in the Steam Store.
Community Hub Members & Followers Chart
Explore the cumulative breakdown of Steam community hub members for The Case Book of Arne and its growth over time. It currently has 2,234 followers on its community page.
About The Case Book of Arne
The Case Book of Arne is an Indie, RPG, and Adventure game developed by HARUMURASAKI, and Vaka Game Magazine. On 10/29/2020, it was released on the Steam Store by Vaka Game Magazine.
Players have rated The Case Book of Arne as "Very Positive" out of 327 total reviews on the Steam Store. These are split between 294 positive reviews and 33 negative reviews — an overall 90% positive review rating.
It is available for gamers to download and play for $4.99 which is a 50% discount off its base price. It can also be purchased through Celebrating Animation! Notable ADV Titles, Vaka Game Magazine Popular Titles Collection, The Case Book of Arne Bundle, and Experience Unique Japanese Horror! Classic J-Horror Titles which give a discount off its base price. The game also includes a single DLC add-on, The Case Book of Arne Interlude available for purchase and download through Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, The Case Book of Arne supports the following features:
- Single-player
- Family Sharing
From the Steam community, The Case Book of Arne has been tagged with the following user tags:
- Dark
- Investigation
- Story Rich
- Pixel Graphics
- RPG
- Psychological Horror
- Mystery
- Cute
- Horror
- RPGMaker
- Detective
- Dark Fantasy
- Vampire
- Anime
- Indie
- Casual
- Adventure
- Singleplayer
- 2D
- Exploration
Media & Sceenshots
Watch the featured video for The Case Book of Arne and see the latest screenshots from the Steam Store.
DLC & Related Apps
The Case Book of Arne is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | The Case Book of Arne Interlude | DLC | 3/1/2021 | View |
Related Bundles
The Case Book of Arne is included in 4 bundles in the Steam Store.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | Celebrating Animation! Notable ADV Titles | 2 | 2 | $8.98 | View |
| Vaka Game Magazine Popular Titles Collection | 18 | 17 | $49.55 | View |
| The Case Book of Arne Bundle | 2 | 2 | $11.68 | View |
| Experience Unique Japanese Horror! Classic J-Horror Titles | 12 | 12 | $33.27 | View |
Related Packages
The Case Book of Arne is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| The Case Book of Arne | $4.99 | View |
Supported Languages
The Case Book of Arne is available in 3 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | Yes |
| Japanese | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
The Case Book of Arne data has been sourced from:
- Valve Corporation. (2025, June 30). The Case Book of Arne on Steam. Steam Store. https://store.steampowered.com/app/1322290
- Valve Corporation. (2025, June 30). The Case Book of Arne. Steam Community Hub. https://steamcommunity.com/app/1322290
- HARUMURASAKI. (2023, July 10). The Case Book of Arne. The Case Book of Arne. https://www.gamemaga.jp/arne/