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The Crypto Challenge Contest

372
Challenges
13,782
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 immortalized in the Hall of Fame.
Challenges in four levels

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

Recent solves
Vincent Zeng
Vincent Zeng

Solved Level 1 challenge Original Caesar Cipher

Vincent Zeng
Vincent Zeng

Solved Level 1 challenge Number Sequence — Part 2

Vincent Zeng
Vincent Zeng

Solved Level 1 challenge Number Sequence

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Solved Level 1 challenge Number Sequence — Part 5

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Solved Level 1 challenge Original Caesar Cipher

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Solved Level 1 challenge Number Sequence — Part 4

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Solved Level 1 challenge A hidden word

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Solved Level 1 challenge Number Sequence — Part 3

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:
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