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The Crypto Challenge Contest

376
Challenges
14,360
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
MeiLü
MeiLü

Solved Level 1 challenge Number Sequence

Cogite
Cogite

Solved Level 1 challenge Alberti Challenge — Part 1

Cogite
Cogite

Solved Level 1 challenge Image Noise

hunter
hunter

Solved Level 1 challenge Number Sequence

SEESI
SEESI

Solved Level 1 challenge Number Sequence

Jan
Jan

Solved Level 1 challenge The Syllabary Cipher – Part 1

Jan
Jan

Solved Level 1 challenge A disguised code

x09416
x09416

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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