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Solve, create, and share logic crimes with clues and a unique solution.
Become a detective with Code 13, an investigation and deduction game where every clue counts.
Analyze testimonies, link suspects to locations, and use the logic board to discover who was at the scene of the incident. Mark each possibility as ruled out, possible, or certain until you solve the case.
INVESTIGATE UNIQUE CASES
Explore mysteries set in locations such as the Mirador Hotel, the Midnight Cruise, and Bellavista University. Each case includes its own story, four suspects, four locations, and clues that lead to a single solution.
PLAY AT YOUR OWN PACE
• Automatically save each investigation.
• Unlimited undo moves.
• Request explained hints when you need them.
• Beat your best times.
• Keep your streak going by solving cases.
• Continue playing offline.
CREATE YOUR OWN CRIMES
Design a case file with a title, setting, difficulty, backstory, suspects, locations, and your own image. The logic engine checks all combinations before saving the case to ensure it has exactly one solution.
SHARE AND CHALLENGE
Send your cases via a link so your friends can receive the same mystery. You can also share your results without revealing the solution.
JOIN THE COMMUNITY
Publish your best cases, discover cases created by other detectives, and like your favorites. Check today's, week's, and month's rankings to see the most popular crimes.
YOUR FILE ACROSS ALL YOUR DEVICES
Create an optional account to sync your progress, streaks, and cases across different phones.
A PREMIUM MYSTERY EXPERIENCE
Key 13 combines logic, investigation, and storytelling in a beautifully crafted interface inspired by grand hotels, classic cruise ships, and historic libraries.
Read the clues. Rule out the impossible. Find the key.
One-click to install XAPK/APK files on Android!