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The Crypto Challenge Contest

368
Challenges
13,138
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
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fppxtv

Solved Level 1 challenge Number Sequence — Part 6

fppxtv
fppxtv

Solved Level 1 challenge Number Sequence — Part 7

fppxtv
fppxtv

Solved Level 1 challenge Number Sequence — Part 3

fppxtv
fppxtv

Solved Level 1 challenge Original Caesar Cipher

fppxtv
fppxtv

Solved Level 1 challenge Number Sequence

xfootest
xfootest

Solved Level 1 challenge Number Sequence — Part 3

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xfootest

Solved Level 1 challenge Number Sequence — Part 2

xfootest
xfootest

Solved Level 1 challenge Original Caesar Cipher

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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