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The Cipher Challenge Contest

376
Challenges
14,512
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
Nagy Attila
Nagy Attila

Solved Level 1 challenge Beaver Code

Takiguchi Noa
Takiguchi Noa

Solved Level 1 challenge Original Caesar Cipher

Takiguchi Noa
Takiguchi Noa

Solved Level 1 challenge Number Sequence

Héctor Guerrero
Héctor Guerrero
Ricardo Mendoza Espinosa
Ricardo Mendoza Espinosa
Patrick Foster
Patrick Foster

Solved Level 2 challenge The Hutton Cipher – Part 2

Takiguchi Noa
Takiguchi Noa

Solved Level 1 challenge A hidden word

Takiguchi Noa
Takiguchi Noa

Solved Level 1 challenge Molehunt (Part 2/3)

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: