Welcome to MysteryTwister!
You like riddles? Then this is your place!
MysteryTwister (MTC3) 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.
Here you can learn more about how it all works and how you can participate.
Here you can find an introduction to the different challenge levels.
Here you can find a comprehensive list of all available challenges.
Here you can find a compact list of all available challenges.