The Casebook: Detective Puzzle

Contains adsIn-app purchases
Content rating
Everyone 10+
100+
Downloads
Content rating
Everyone 10+
Fantasy Violence
In-Game Purchases
Learn more
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About this game

Every case is a puzzle. Every suspect is lying about something. Only one of them is a killer.

THE CASEBOOK is a detective game where you solve self-contained murder mysteries in 15–30 minutes. Read the case file, visit the crime scene, gather evidence, interrogate suspects, and — when you're ready — formally accuse someone.

You only get one accusation. No take-backs. No second chances.

• FAIR PLAY — every case is solvable through evidence alone. No moon logic, no guessing. A careful player who gathers everything can always deduce the killer.

• HAND-CRAFTED CASES — written by humans who care. Suspects have voices. Clues have weight. Every case ends with a verdict card worth sharing.

• RANK UP — solve cases well to progress from Cadet to Legend. Earn new casebook themes as you climb.

• NO PAY-TO-WIN — every case is winnable without spending. Hints are rare and optional. You can't buy the answer.

Perfect for commutes, lunch breaks, bedtime. Think Wordle meets a detective novel.
Updated on
May 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

What’s new

Bug Fixes and Optimisations Post Launch