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The Crypto Challenge Contest

375
Challenges
14,268
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
Freshness
Freshness

Solved Level 1 challenge Number Sequence — Part 2

Freshness
Freshness

Solved Level 1 challenge Original Caesar Cipher

Freshness
Freshness

Solved Level 1 challenge Number Sequence

DoorMan
DoorMan

Solved Level 1 challenge Bigram Substitution – Part 1 (Tutorial)

Pamphile
Pamphile

Solved Level 1 challenge Advent-Challenge — Part 1

Pamphile
Pamphile

Solved Level 1 challenge A hidden word

Slimbeat
Slimbeat

Solved Level 1 challenge Original Caesar Cipher

RUDRA
RUDRA

Solved Level 1 challenge Wheatstone Cryptograph — Part 1

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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