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The Crypto Challenge Contest

375
Challenges
14,305
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
Krish
Krish

Solved Level 1 challenge A hidden word — Part 2

Baani Mittal
Baani Mittal

Solved Level 1 challenge A hidden word — Part 2

Shiv
Shiv

Solved Level 1 challenge Number Sequence — Part 2

Javantea
Javantea

Solved Level 1 challenge Recycled One-Time Pad

shreya
shreya

Solved Level 1 challenge New Year's Greetings — Part 1

Prisha
Prisha

Solved Level 1 challenge New Year's Greetings — Part 1

Baani Mittal
Baani Mittal

Solved Level 1 challenge New Year's Greetings — Part 1

saffi
saffi

Solved Level 1 challenge Number Sequence

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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