Explore Challenges
About MysteryTwister
Contributors and partnersLinks
Community
Discord ServerHall of FameSubmit Challenge
Account

Powered by the CrypTool project

© 2009-2025 MysteryTwister

Contact | Legal Notice | Privacy

We redesigned MysteryTwister, enjoy! Feedback

The Crypto Challenge Contest

375
Challenges
14,245
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
chabong
chabong

Solved Level 1 challenge Number Sequence

Kai Fischell
Kai Fischell

Solved Level 1 challenge The Syllabary Cipher – Part 1

Kai Fischell
Kai Fischell

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

ParZivalone_00017
ParZivalone_00017

Solved Level 1 challenge A disguised code

Snake
Snake

Solved Level 2 challenge Handycipher made in love — Part 2

Artamiel
Artamiel

Solved Level 2 challenge Letter to the Templars — Part 3

Artamiel
Artamiel

Solved Level 1 challenge Letter to the Templars — Part 2

Philipp
Philipp

Solved Level 1 challenge M-138 — 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:
0