🔐 CIPHER BOGEY

Play Cipher Bogey Online

Cipher Bogey is a free substitution cipher puzzle game with 100 encrypted messages to crack. Work out which real letters have replaced the encrypted letters and gradually reveal each hidden sentence.

How to Play Cipher Bogey

• Read the encrypted message shown at the top of the puzzle.
• Each encrypted letter represents a different letter of the alphabet.
• Use the Decoder to enter the letter you think each encrypted letter represents.
• A correct answer locks automatically and reveals that letter wherever it appears in the message.
• An incorrect guess adds to your Mistakes total, but you can continue trying.
• If you get stuck, select Reveal a Letter to uncover one correct letter. Each revealed letter is counted as a hint.
• Clear Unlocked Boxes removes unfinished guesses without removing letters you have already solved.
• Decode every letter used in the message to crack the code and move on to the next puzzle.

100 Cipher Puzzles

Cipher Bogey contains 100 puzzles that gradually develop from short messages into longer codebreaking challenges. Your current puzzle and solved letters are saved in your browser, so you can return and continue your progress later.

What Is a Substitution Cipher?

A substitution cipher replaces each letter in a message with another letter. The same encrypted letter represents the same real letter throughout a puzzle. Look for repeated letters, common words and familiar language patterns to help uncover the hidden message.

Crack all 100 substitution cipher puzzles to reach the end of the Cipher Bogey archive and become a Master Codebreaker.