Sinclair's Notebook
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperPuffything Games Inc.
CategoryGames
PriceFree
Released
Rating★ 5.0 (23)
Version1.0.8
Age rating9+
First seen by us
24 Oct 2026
Installs (est.)1k+ worldwide
Rating
5.0 ★
23 ratings
Measured
Sinclair's Notebook on the App Store
App details
App ID
6758689011
Publisher
Puffything Games Inc.
On the store since
Feb 2026
Under a year
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
9+
Languages
1
EN
Size
505 MB
Also listed in
Adventure
Sinclair's Notebook downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
23 ratings
Measured
Ratings
23
Measured
About Sinclair's Notebook
A literary mystery game where you become Sinclair.
Sinclair and Demian are irreplaceable friends who understand each other like no one else. On the day Sinclair dreams of receiving Demian’s notebook, ominous dark clouds cover the sky, and people suddenly become impulsive and violent, their eyes stained a maddening red. In an instant, the world descends into complete chaos.
Sinclair opens the strange notebook Demian once gave him. From within it, a glowing blue bird bursts forth and flies toward Demian’s house. Carrying only the notebook, Sinclair follows the blue bird—the beacon of light Demian left behind—and sets out on a perilous journey.
About the Game
Sinclair’s Notebook is a point-and-click mystery thriller visual novel that reinterprets Demian, Hermann Hesse’s coming-of-age classic. One day, the world of evil—filled with blood, darkness, and immorality—emerges with ominous storm clouds and begins to consume even the world of good.
In this crisis, Demian, Sinclair’s one true confidant, has vanished. Your goal is to follow the beacon of light, find him, and uncover the truth behind what has happened.
Set against the literary atmosphere of the 1910s, the game delivers poetic emotion and delicate portrayals of the inner self inspired by the original novel. Whether you have read Demian or not, you can enjoy the story through an immersive choice-driven narrative. Choose Sinclair’s words and actions yourself, and draw closer to the truth.
Gameplay
Ordinary life is gone. Explore the map to uncover clues that will lead you to Demian and gather the evidence needed to support them, recording everything in your notebook.
Once you have collected enough clues and evidence, you must combine what you have gathered in the notebook and solve the situation at hand. In a world brought to a standstill, Sinclair is not simply trying to identify a criminal and bring them to justice. He must save those consumed by madness, resolve conflicts among the people entangled in each case, and investigate situations that defy all understanding.
The game also features puzzles that are approachable even for players who are new to mystery games.
Characters
Meet a wide range of characters from the original novel, each reimagined with deeper stories and new narrative layers. Sinclair’s Notebook also features charming original characters who appear only in this game.
[Sinclair]
A growing boy who endlessly seeks to understand himself and the world
[Demian]
A mysterious friend who seems to see through everything in the world
[Eden]
A mystical blue bird made of light
[Frau Eva]
Demian’s mother, a prophet who can wield magic
[Father Martin]
A priest who knows an important truth about the past of the church on the outskirts
Many more characters will join Sinclair’s journey throughout each chapter.
Recommended For
-Players who love classic literature
-Players looking for story-driven games, visual novels, or mystery games
-Players who enjoy dark fantasy that is intense yet mea
Sinclair and Demian are irreplaceable friends who understand each other like no one else. On the day Sinclair dreams of receiving Demian’s notebook, ominous dark clouds cover the sky, and people suddenly become impulsive and violent, their eyes stained a maddening red. In an instant, the world descends into complete chaos.
Sinclair opens the strange notebook Demian once gave him. From within it, a glowing blue bird bursts forth and flies toward Demian’s house. Carrying only the notebook, Sinclair follows the blue bird—the beacon of light Demian left behind—and sets out on a perilous journey.
About the Game
Sinclair’s Notebook is a point-and-click mystery thriller visual novel that reinterprets Demian, Hermann Hesse’s coming-of-age classic. One day, the world of evil—filled with blood, darkness, and immorality—emerges with ominous storm clouds and begins to consume even the world of good.
In this crisis, Demian, Sinclair’s one true confidant, has vanished. Your goal is to follow the beacon of light, find him, and uncover the truth behind what has happened.
Set against the literary atmosphere of the 1910s, the game delivers poetic emotion and delicate portrayals of the inner self inspired by the original novel. Whether you have read Demian or not, you can enjoy the story through an immersive choice-driven narrative. Choose Sinclair’s words and actions yourself, and draw closer to the truth.
Gameplay
Ordinary life is gone. Explore the map to uncover clues that will lead you to Demian and gather the evidence needed to support them, recording everything in your notebook.
Once you have collected enough clues and evidence, you must combine what you have gathered in the notebook and solve the situation at hand. In a world brought to a standstill, Sinclair is not simply trying to identify a criminal and bring them to justice. He must save those consumed by madness, resolve conflicts among the people entangled in each case, and investigate situations that defy all understanding.
The game also features puzzles that are approachable even for players who are new to mystery games.
Characters
Meet a wide range of characters from the original novel, each reimagined with deeper stories and new narrative layers. Sinclair’s Notebook also features charming original characters who appear only in this game.
[Sinclair]
A growing boy who endlessly seeks to understand himself and the world
[Demian]
A mysterious friend who seems to see through everything in the world
[Eden]
A mystical blue bird made of light
[Frau Eva]
Demian’s mother, a prophet who can wield magic
[Father Martin]
A priest who knows an important truth about the past of the church on the outskirts
Many more characters will join Sinclair’s journey throughout each chapter.
Recommended For
-Players who love classic literature
-Players looking for story-driven games, visual novels, or mystery games
-Players who enjoy dark fantasy that is intense yet mea
Latest updates
1.0.8
bug fix