Detective Academy
Cipher Detectives
Crack the code, guard the key · 16 cases · think like a codebreaker
🔎 Quick checks🔐 Cases🪜 Memory hooks😂 Jokes🏅 Badges
⭐ 0/16·Rookie
How this works — 3-minute missions
- Pick any mission — any order. Read it, then do the Quick check: say your answer out loud before you reveal it.
- Earn a star by finishing that mission's short round. Ten-ish stars = Study Master.
- Laugh + move. The jokes and brain-breaks aren't extra — they're how your brain glues the ideas in.
🗺️ The Case Board
Case 1 Secret Messages Basics
Case 2 Caesar & Substitution
Case 3 Classical Cipher Systems
Case 4 Frequency Analysis
Case 5 Transposition Ciphers
Case 6 Number-Based Codes
Case 7 Codebreaking Techniques
Case 8 Modern Encryption
Case 9 Hidden Messages
Case 10 Crypto in Daily Life
Case 11 Public & Private Keys
Case 12 Cybersecurity
Case 13 Connecting Ciphers
Case 14 Crypto in the World
Case 15 Cipher Traps
Case 16 Advanced Synthesis
🎮 More ways to practice
🏅 Badges
Joke Master
Riddle Ruler
Trick Tamer
Puzzle Pro
Boss Beater
Lab Legend
🎖️ Level ladder
Rookie Detective Inspector Master Sleuth