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The Crypto Challenge Contest

372
Challenges
13,651
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
electric ice wolf
electric ice wolf

Solved Level 1 challenge Beaver Code

electric ice wolf
electric ice wolf

Solved Level 1 challenge Caesar Encryption

electric ice wolf
electric ice wolf

Solved Level 1 challenge Number Sequence — Part 2

electric ice wolf
electric ice wolf

Solved Level 1 challenge Original Caesar Cipher

electric ice wolf
electric ice wolf

Solved Level 1 challenge Number Sequence

hahahahaha
hahahahaha

Solved Level 1 challenge Number Sequence — Part 2

hahahahaha
hahahahaha

Solved Level 1 challenge Original Caesar Cipher

hahahahaha
hahahahaha

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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