Screenshots
Watch trailer on Steam ↗迷雾岛屿：9号万能试剂
Bio.no.187 · Published by Bio.no.187
Content notice: This game includes non-explicit sexual content and occasional partial nudity. Certain storylines involve sexual assault / non-consensual contact. All characters are portrayed as 18+. The game also features violence/injury and psychological distress in medical/experimental settings. Player discretion advised.
Positive — 91% positive (35 reviews)
Last updated 6 Oct 2026
The new "DROPS" gameplay system is now live. You can now use keywords to unlock lost memories and undiscovered records to pursue the truth hidden amidst the fog. You play as an amnesiac, piecing together fragmented memories to uncover the dark secrets hidden within yourself and on the island.
£2.71
£3.39Lowest price we've ever recorded
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Price history
Adventure, Indie, Casual · 2025 · More under £5 games
Explore the enigmatic mystery of 迷雾岛屿：9号万能试剂 as an amnesiac, piecing together fragmented memories with the new DROPS system. Uncover hidden truths and dark secrets in this casual adventure from Bio.no.187.
About this game
Caught in a conspiracy woven by two suspicious figures, you must extract key clues from the smallest details, recover your lost memories, and pursue the truth hidden beneath the fog.
New Feature: DROPS Memory Unlock System
By entering keywords related to the story, you can gradually unlock hidden memory fragments, event records, and clue entries.
Some information will not be placed directly in front of you. It must be uncovered through words repeatedly mentioned by the characters, unusual descriptions found in records, and the connections between different memories.
FOG Island is a text-based mystery game blending suspense, science fiction, and romance.
Story
You play as an amnesiac, piecing together fragmented memories to uncover the dark secrets both within yourself and hidden on the island.
One day, you notice that two of your regularly scheduled pills are missing.
That night, your dreams overflow with bizarre visions—the man who usually visits you on schedule transforms into a killer intent on ending your life.
At the same time, your therapist at the hospital has been replaced by a new doctor: gentle, caring… and unnervingly similar in appearance to your “boyfriend.”
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In this fragile emotional web, will you choose Grit or Faith?
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Key Features
Two Parallel Routes
Each of the two male leads has an independent storyline.Multiple Endings
Your choices affect two hidden stats—Grit and Faith—and determine which of the 8 possible endings you’ll reach.Playtime
Approximately 5 hours of main-story content.
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Characters
GIRT: In your forgotten past lie fragments that have seeped into this world from the abyss. Silent and inscrutable, he seems bound by some unknown rule.
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FAITH: The true origin of all things can be deceptively simple, but the path of discovery is lined with thorns. At the limit of trust, sacrifice and paradise may coexist… and perhaps regret is the only right choice.
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System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7或以上
- Processor: Intel Core 2 Duo
- Memory: 2 GB RAM MB RAM
- Graphics: Intel HD Graphics / NVIDIA GTX 750 及以上
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
AnnouncementsOfficial
New gameplay feature added: DROPS system ● Spring Sale: 20% Off
In this update, I experimented with a word-based puzzle system. It is a small attempt to make the process of recovering memory clues feel more interactive through puzzle-solving.At the same time, a large number of new entries have been added for users to explore. If the DROPS system improves the overall experience, I may continue to expand this gameplay in a future title. On the other hand, if it feels more confusing than engaging, I may keep only the clue-reference function instead. Feedback through any channel is very welcome.There are also two other notes I would like to share:I’m sorry that this update does not include achievements yet. The achievement system is planned for the next update.The current text localization still has areas that need improvement, and I will continue refining it. I’m also looking for anyone willing to help with proofreading localized text. If you are interested, I would be very grateful for your help.Read full article on Community Announcements (bionic.no.187)AnnouncementsOfficial
Winter Sale: 20% Off
You can switch languages from the title screen: Language → Japanese / English / Chinese. I’m currently going through player feedback to decide what to improve next. If you’ve played the game and have a moment to leave your thoughts in the Reviews section (even a short note is helpful), I’d really appreciate it — it directly guides future updates.Read full article on Community Announcements (bionic.no.187)Patch NotesOfficial
Issue Fixed
NoticeThe issue caused by selecting the English language option in the current release has now been fixed.Thank you so much for your patience and support.If you encounter any other problems in the game, feel free to contact me anytime via email!公告选择 English 语言选项后会出现运行错误的情况，现已修复完毕。 感谢耐心与支持！ 另外游戏中遇到任何问题，都欢迎随时通过邮箱或微博私信联系我！Read full article on Community Announcements (bionic.no.187)AnnouncementsOfficial
【Panacea No.9】 launches on October 31 ● Launch Discount -15% (14 days)
Thank you for your support! 【Panacea No.9】goes live on October 31, 2025, with a 15% launch discount for 14 days.At launch:Full Chinese versionFull English versionJapanese DemoRead full article on Community Announcements (bionic.no.187)AnnouncementsOfficial
English is now supported.
also made some UI updatesThe base game—two routes, nine endings—is now complete. Under review.Japanese support is in development.Read full article on Community Announcements (bionic.no.187)
