MysteryTwister - The Cipher Challenge Contest

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The Cipher Challenge Contest

380
Challenges

15,095
Active members

You like riddles? Then this is your place!

MysteryTwister is a cipher contest, where you can solve cryptographic riddles (challenges) of different difficulty levels. If you are successful, you will be inducted into the Hall of Fame.

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

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Loukia

Solved Level 1 challenge Modified Caesar Cipher

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Loukia

Solved Level 1 challenge Original Caesar Cipher

LeonidasPoulianos

Solved Level 2 challenge Cracking SHA1-Hashed Passwords

JoeMac4

Solved Level 1 challenge A disguised code

Zoi Chrysanthakopoulou

Solved Level 1 challenge Original Caesar Cipher

Zoi Chrysanthakopoulou

Solved Level 1 challenge Advent-Challenge — Part 1

LeonidasPoulianos

Solved Level 1 challenge Number Sequence — Part 2

olekkas

Solved Level 1 challenge Assembly Point – Part 1

Learn, Hack & Connect

Solve challenges and connect with other users on Discord

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

Enter the Hall of Fame

Master challenges in four levels and secure your spot in the Hall of Fame

Start exploring the challenges

Our 7 most solved challenges

Number Sequence
Level 1

Original Caesar Cipher
Level 1

Number Sequence — Part 2
Level 1

Caesar Encryption
Level 1

Beaver Code
Level 1

Number Sequence — Part 3
Level 1

Letter to the Templars — Part 1
Level 1