GAME LINK:https://www.dlsite.com/maniax/work/=/product_id/RJ01405813.html
Dear players, thank you for your continued support of CYAN BRAIN.
Here are the details of this update:
🎨 New Additions
Added 3 new reward CGs
┗ Unlocked after clearing Stage 2, Stage 3, and Stage 4
┗ Already-cleared save data can directly view them
2025-08-16 18:10:07 +0000 UTC
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Upcoming Updates
September Free Update Preview
Two brand-new monsters & R18 execution animations
New dynamic CG with full audio
New collectible text entr...
2025-08-13 06:56:11 +0000 UTC
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Dear players,
Thank you very much for purchasing and playing CYAN BRAIN. If you encounter any bugs or issues during gameplay, we sincerely apologize for any inconvenience this may cause. To improve your experience, we kindly ask that you report them on our official Discord.
Your reports will help us fix and improve the game more quickly. We greatly appreciate your understanding and cooperation.
📢 Report here (Official Discord)
👉
2025-08-12 07:00:08 +0000 UTC
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Thank you all for your continued support of CYAN BRAIN.
To celebrate the release, we are holding an RT campaign where you can win a DLsite gift card!
In addition, we have officially launched our Discord channel, so please feel free to join us!
📜 How to Enter
① Follow @nekoujistudio & @iuui1551
② Retweet this post https://x.com/nekoujistudio/statu...
2025-08-10 07:17:06 +0000 UTC
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Thank you very much for your continued support of CYAN BRAIN.
We are pleased to announce that CYAN BRAIN will be officially released on Tuesday, August 12, 2025, at 16:00 (JST) via DLsite.
▼ Product page
🔗 https://www.dlsite.com/maniax/announce/=/product_id/RJ01405813.html
Be sure to add it to your favorites and look forward to t...
2025-08-09 10:06:06 +0000 UTC
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Thank you all so much for your continued support of CYAN BRAIN.
The day has finally come.
CYAN BRAIN is officially set to launch on Tuesday, August 12, 2025, exclusively on DLsite.
We truly appreciate your ongoing support and look forward to sharing this game with you.
📦 Release Date & Platform Information
Release Date: Tuesday, August 12, 2025
Platform: DLsite (Adult Version)
...
2025-08-06 18:07:22 +0000 UTC
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👁🗨 Announcement of “CYAN BRAIN” New Demo Release
To everyone who has supported us,
We sincerely apologize for the long wait.
This demo is the latest version of Chapter 1.
We have thoroughly refined the system and presentation based on previous content.
Main Additions and Adjustments:
・ Re-recorded and adjusted all character voices
・ Added difficulty selection
...
2025-07-17 13:47:23 +0000 UTC
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Dear supporters,
This is the development team of CYAN BRAIN.
We are pleased to announce that the DLsite pre-release page for CYAN BRAIN is now live.
▼Pre-release page
https://www.dlsite.com/maniax/announce/=/product_id/RJ01405813.html
Alongside this, we have also released the latest promotional PV.
We would be grateful if you could ...
2025-06-06 11:37:36 +0000 UTC
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Dear Supporters,
Thank you very much for your continued and exceptional support.
Development of CYAN BRAIN has now entered its final, accelerated phase.
We will soon be officially unveiling the product preview page on DLsite.
Ahead of that, we are pleased to present an exclusive early release of the promotional video for our supporters.
Please take a glimpse into a world where terror and beauty intertwine.
We dee...
2025-06-02 12:27:28 +0000 UTC
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【Development Progress Report – April 2025】
Thank you as always for your continued support!
Here is our development update for April:
Voice recording for the characters has been successfully completed.
Animated CGs featuring voice acting are currently in active development. These will be available as reward items within the game.
Background assets for stages 5 and 6 have been completed, and final stage construction ...
2025-05-01 09:34:52 +0000 UTC
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Dear Supporters,
Thank you very much for your continued support.
We are pleased to announce that the development of Stage 4 is progressing smoothly.
All weapon systems and animations for the new monsters have been completed.
We are currently fine-tuning and improving the behavioral AI of these new monsters.
In addition, the production of the game’s soundtrack has been successfully completed.
Character voice recording is scheduled to officially ...
2025-04-02 17:01:45 +0000 UTC
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Dear Supporters,
Thank you very much for your continued support.
We sincerely apologize, but due to the extensive bug fixes required for each stage during development, we have decided to complete all game content before the official release. The game is scheduled for completion and release in the third quarter of this year.
Before all content is finalized, we will release an official game demo, including voice acting, game music, new systems, and the final U...
2025-03-01 03:08:31 +0000 UTC
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New Year's Greeting
Happy New Year!
We are deeply grateful for the support we received last year. Thanks to your encouragement, we have made significant progress in the development of this project. This year, we are committed to delivering an even more exciting and engaging game. Our team will continue to work tirelessly, and we hope for your continued support.
We wish you a wonderful year in 2025! Thank you once again for your unwavering encouragement!
<...
2025-01-28 16:59:25 +0000 UTC
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Greetings
Thank you for your continued support! We are excited to bring you new updates and enhancements to make your gaming experience even more enjoyable. While the current update is still in the testing phase, we appreciate your valuable feedback to help us improve further.

Update Details
1. Updates to Chapters 1 and 2
We ha...
2024-12-18 12:26:08 +0000 UTC
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To all our followers, thank you so much for your continued support.
Currently, our programmer is in the process of recovering, and we are planning to update the content of Chapter 2 in early December.
We sincerely appreciate your understanding and support.
Please look forward to it!
2024-11-30 10:03:13 +0000 UTC
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Dear Supporters,
Thank you for your continued support.
To everyone who was looking forward to the October update, we sincerely apologize. We worked diligently until the very last day, but unfortunately, we were unable to complete Chapter 2.
Currently, Chapter 2 is in a playable state, but it has more bugs than anticipated, and there are areas that still need to be fixed. As we are a small development team, we had no choice but to delay the update.
2024-11-02 09:33:41 +0000 UTC
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Dear followers, thank you for your continued support.
This month, the production of Chapter 2 is nearly complete, with only some programming work left related to the new weapon and monster systems.
The map for Chapter 2 is larger and offers more content compared to Chapter 1. We plan to release the complete version of Chapter 2 next month.

2024-09-30 13:15:59 +0000 UTC
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Dear Followers,
Thank you very much for your continued support.
Based on your feedback, we have made several adjustments to the stages.
We have reorganized the map in Chapter 01 to prevent players from getting lost or missing items.
Additionally, we’ve added new weapons to Chapter 01 and rebalanced aspects such as weapon damage, ammunition counts, and monster health. You can now zoom in when the execution animation plays.
Since Chapter 01 serve...
2024-08-31 11:57:36 +0000 UTC
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Dear followers, Thank you always for your support.
Update Details:
♦Home System: You can now return to the base area after completing a stage.

♦Animation Viewing Room: Interact with the bed at home to enter the Animation Viewing Room.
2024-08-01 11:08:52 +0000 UTC
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Dear everyone,
We hope this message finds you well.
We sincerely apologize, but due to numerous issues with the game's save data system, the upload of the new game files has been delayed to August 1st.

### Updates in this release:
1. *Home System*: Players can now return to the base area after completing a stage.
2. *Animation Viewing Room...
2024-07-31 12:56:30 +0000 UTC
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Apology for the Delay in Progress
We sincerely regret to inform you that,
While we have completed the production of new monsters, characters, some base systems, conversation systems, and several collection items within June, due to the time taken for the development of the multilingual system and various bug fixes, the update for new content has been postponed to next month.
Furthermore, we are striving to expedite the production of subsequent stages.
<...
2024-06-29 21:34:29 +0000 UTC
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Dear followers,
Thank you very much for your continued support.
Thanks to your valuable feedback, we have addressed a series of issues in the previous version and introduced new features in this update:
♦ New weapons
♦ A device for replenishing ammunition
♦ A feature to expand the field of view
♦ Several new screen effects
*Please note that save data from the previous version will no longer be usable.
**Please be aware that thi...
2024-06-17 10:23:12 +0000 UTC
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Dear followers, thank you very much for your continued support.
After much hard work, we are pleased to announce that the test version of Chapter 01 of [CYAN BRAIN] is now complete. We have uploaded the game content files so that our sponsors can play it.
Due to time constraints, the story and dialogue content within the game have not yet been implemented. We plan to update the scenario system in the game by next month.
This update includes the prologue map and related gamep...
2024-05-31 13:15:19 +0000 UTC
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To our followers,
Thank you very much for your continued support.
We plan to update the demo version of Stage 01 between May 25th and 31st. We are working at full capacity right now.
Before releasing the official version of Stage 01, we will publish videos showcasing the monsters and traps.
▲ Please note: The uploaded videos contain spoilers. If you wish to experience these elements within the game, please do not watch!
⚠ The videos contain graphic violence a...
2024-05-20 18:29:34 +0000 UTC
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2024-05-07 16:23:31 +0000 UTC
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2024-04-30 08:45:08 +0000 UTC
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To all our followers,
Thank you as always for your support.
We will be releasing paid updates to the content of the first chapter of the official version in mid-May. The updates will include:
- Maps
- Monsters, Bosses
- UI, Combat Systems, Weapons
and more...
Your support means a lot to us and serves as a great encouragement for our game development. We sincerely appreciate it.
Thank you very much.
2024-04-29 23:29:15 +0000 UTC
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▲怪物に倒された後に入手できるカード
▲The card obtainable after being defeated by a monster.
2024-04-28 12:45:53 +0000 UTC
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[CYAN BRAIN]の制作初期展示デモが公開されました。
皆様、いつもご応援いただき、誠にありがとうございます。
2024年4月6日にリリースされた初期体験版DEMO α は、制作時間が迫っており、多くの不具合がが発生しました。
緊急修正を経て、2024年4月22日にβ版をリリースいたします。
▲ ゲーム体験に影響を与える不具合の修正
▲ いくつかの不合理なモ...
2024-04-22 16:01:40 +0000 UTC
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2024-04-07 14:50:13 +0000 UTC
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