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The Crypto Challenge Contest

372
Challenges
13,596
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
Lucien
Lucien

Solved Level 1 challenge Original Caesar Cipher

Lucien
Lucien

Solved Level 1 challenge Number Sequence

Martin Pescador
Martin Pescador

Solved Level 1 challenge Multilingual Monoalphabetic Substitution

Kaz
Kaz

Solved Level 1 challenge Kaskade-S/T — Part 1

Kaz
Kaz

Solved Level 1 challenge Strange Message from Thessaloniki

Convallaria
Convallaria

Solved Level 1 challenge Molehunt (Part 1/3)

Martin Pescador
Martin Pescador

Solved Level 1 challenge Music Code — Part 1

Convallaria
Convallaria

Solved Level 1 challenge Wheatstone Cryptograph — 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:
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