"Restricted Area ~The Cave of Aoki~" Launches Content Improvement Patch ver1.1.0, Adding Hint Messages and New Original Voice Clips for Himari and Komari
Note: the original Japanese article can be found at:
https://www.4gamer.net/games/928/G092812/20251002045/
Editorial Department: Yashijima | 2025/10/02 09:25 (UTC)
LiTMUS and HYDE today (October 2, 2025) announced the release of version 1.1.0 content improvement patch for their Japanese-style weird horror adventure game “Forbidden Ground: The Cave of the Blue Oni” (PC here / Switch here).
This patch has been developed in response to player feedback and suggestions, aiming to enhance the overall game experience.
Upon installing this update, players will gain access to new hint messages (memo function) as well as newly recorded voice lines for the protagonist girl “Himari” and the Japanese doll haunted by a spirit, “Komari.” A new feature has also been implemented: Himari and Komari can now discuss story developments, next steps, or destinations. The content of these conversations is saved in the memo section and can be reviewed at any time.
Thumbnail image No.003: “Forbidden Ground – The Cave of the Blue Oni” - Content improvement patch ver. 1.1.0 released. Added hint messages and newly recorded voice lines for Himari and Komari Thumbnail image No.002: “Forbidden Ground – The Cave of the Blue Oni” - Content improvement patch ver. 1.1.0 released. Added hint messages and newly recorded voice lines for Himari and Komari
Additionally, the transition from the calligraphy classroom to Area 1-1 has been transformed into an event scene. Some previously inaccessible stairs and passages have now become passable.
Thumbnail image No.004: “Forbidden Ground – The Cave of the Blue Oni” - Content improvement patch ver. 1.1.0 released. Added hint messages and newly recorded voice lines for Himari and Komari Thumbnail image No.005: “Forbidden Ground – The Cave of the Blue Oni” - Content improvement patch ver. 1.1.0 released. Added hint messages and newly recorded voice lines for Himari and Komari
Other various adjustments and bug fixes have also been applied. For detailed information, please refer to the official release statement below.
Also note that on Steam, the PC version is currently on sale at 25% off for ¥990 (tax included). The promotion runs until October 7.
Japanese-style weird horror adventure game “Forbidden Ground – The Cave of the Blue Oni” now available with content improvement patch ver. 1.1.0.
LiTMUS Co., Ltd. (Headquarters: Minato Ward, Tokyo; Representative Director & CEO: Takahiro Kuwamura) and HYDE Inc. (Headquarters: Shinjuku Ward, Tokyo; Representative Director: Kenichi Yanagihara, hereinafter “HYDE”) are pleased to announce the release of version 1.1.0 content improvement patch for their Japanese-style weird horror adventure game “Forbidden Ground – The Cave of the Blue Oni.”
Additionally, as part of the Autumn Sale on Steam, this title is currently available at a 25% discount—don’t miss this opportunity to purchase!
[Product Overview]
Title: “Forbidden Ground – The Cave of the Blue Oni”
Development/Publishing: HYDE Inc.
Selling Price: ¥1,320 (tax included)
Steam version: 25% OFF at ¥990 (tax included) from September 30 (Tue) to October 7 (Tue)
Available Platforms: Nintendo Switch / PC (Steam)
Genre: Horror Action Adventure
Number of Players: 1
Languages: Japanese, English, Simplified Chinese, Traditional Chinese
Steam Store Page: https://store.steampowered.com/app/3846030/_/
Nintendo Switch Store Page: https://store-jp.nintendo.com/item/software/D70010000104159
Official Japanese X (formerly Twitter): https://x.com/kinsokuchi
[1st Trailer]
https://youtu.be/vp7dSV17Q9I
About the Release of Content Improvement Patch
We have sincerely listened to valuable player feedback and suggestions, and in response, we are releasing this content improvement patch to provide you with the best possible experience.
Main Updates in “Forbidden Ground – The Cave of the Blue Oni” - Version 1.1.0
Added hint messages (memo function) and newly recorded voice lines for Himari and Komari
A new feature has been added allowing Himari and Komari to discuss story developments, next steps, or destinations. These conversations are saved in the memo section and can be reviewed at any time.
All voice lines are newly recorded. In addition to story-related content, players can also enjoy light-hearted banter between the two characters—making this a more engaging experience even for those who have already completed the game once.
Transition from Calligraphy Classroom to Area 1-1 now an event scene
Previously, players manually carried each friend one by one from the calligraphy classroom to Area 1-1. This has now been changed into a fixed event sequence, removing player control during this transition. This improves pacing and enhances immersion in character interactions, world-building, and storytelling—making gameplay smoother and more enjoyable.
Previously inaccessible stairs and passages now passable
Certain previously unusable stairs and pathways have been made accessible. Additionally, the time required to open doors has been reduced. This expands escape options during chases—players can now flee through doors, down staircases, or switch floors more freely, increasing exploration freedom and strategic choices.
Other Updates
[New Additions]
- Added display of item and data details immediately after acquisition.
[Adjustments]
- Replaced and added sound effects (SE)
- Adjusted the Blue Oni’s movement speed
- Revised the placement and behavior patterns of the Blue Oni
- Adjusted positioning of visual effect gimmicks
[Bug Fixes]
- Minor text formatting issues corrected
- Fixed issue with initial cursor display position
- Additional minor text corrections applied
Future Plans
The Forbidden Ground development team will continue to listen closely to your feedback, striving to improve and optimize content so that players can enjoy the game to the fullest. We sincerely appreciate your continued support.