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Casebook
Everyday mysteries. Follow the clues. Find the answer.
Solve 36 everyday mysteries in your browser. Read reliable clues, mark a deduction notebook and find the person who fits. Three difficulty levels, optional hints and local progress. Free, with no account, download or timer.
Hi Product Hunt! I'm the developer of Casebook on SnackTurn.
Casebook is a collection of everyday deduction mysteries. Read the public rules and reliable evidence, mark possibilities in your notebook, then choose the person who fits every clue.
There are 36 cases across Starter, Intermediate and Expert. All three levels are available from the start. Each case has three optional hints and an explanation after you solve it. There is no timer, and progress stays in your browser.
For a first case, try The Borrowed Umbrella: four people, four umbrellas and three records. You only need to identify the person holding the red umbrella; you don't need to fill every notebook cell.
It's free to play in English or Simplified Chinese, with no account or download. I'd like to hear which deductions felt satisfying and where the notebook or wording was unclear.
AI tools helped with development and this launch copy.
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About Casebook on Product Hunt
“Everyday mysteries. Follow the clues. Find the answer.”
Casebook was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #45 on the daily leaderboard. Solve 36 everyday mysteries in your browser. Read reliable clues, mark a deduction notebook and find the person who fits. Three difficulty levels, optional hints and local progress. Free, with no account, download or timer.
Casebook was featured in Puzzle Games (4.3k followers) and Free Games (9k followers) on Product Hunt. Together, these topics include over 11.5k products, making this a competitive space to launch in.
Who hunted Casebook?
Casebook was hunted by 新一. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Casebook stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
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