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online cryptology game
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Matematycy

Join players worldwide and discover our cryptology game.

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Become a codebreaker

Face the challenge

An International Online Cryptology Game dedicated to the conquerors of the Enigma cipher M. Rejewski, J. Różycki, H. Zygalski and other members of the Cipher Bureau team.

theCODEBREAKERS
About the game
About history
Acquire knowledge

Cipher course

The game refers to the historic Cipher Course held in Poznan, Poland, in 1929. Participants learn increasingly difficult ciphers and other methods of keeping information secret and how to break them. They put their acquired knowledge into practice by measuring themselves against other players in solving cryptological tasks! Competition, time pressure, challenge and mystery - these are the four intrinsic elements of a cryptologist's work.

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Cipher course

Three levels of difficulty

TRIAL

is a one-person game that during six lectures will allow you to learn the basics of a cryptologist's work, encompassing simple codes (including unbreakable ones!) and will enable you to face first cryptological challenges.

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TEAM AND TRY THE GAME
BASIC

is an encounter with the historical methods of information secrecy that were the ABC of every cryptologist. They also had to be learnt by the future Enigma Conquerors at the beginning of the Cipher Course that made them cryptologists. At this level, teams of three will play the role of adepts of cryptology.

ALL STAGES AVAILABLE
TAKE ON THE CHALLENGE
ADVENTURE

is the next step in the exploration of cryptological craftsmanship. A real adventure in ciphers, including the famous ‘le chiffre indéchiffrable’. As it will turn out, this ‘unbreakable cipher’ will succumb, sooner or later, to your team's attacks. All it takes is a little cryptological intuition....

ALL STAGES AVAILABLE
TAKE ON THE CHALLENGE
ENIGMA

is a clash with the cipher guarding the greatest secrets of the Third Reich. Take on the role of Polish mathematicians and compete for the title of Enigma slayer!

1-ST CHALLENGE: 29.11
DECISIVE STAGE: 06.12
Afraid you can't cope? Rest assured that with the help of our cipher-breaking tools and tips from the Enigma Conquerors, you will be able to master even the most difficult tasks.
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Compete

Players from all over the world

Compete with players from all over the world, decode secret messages first and win crypto prizes. In the previous edition, over a thousand crypto-enthusiasts from all around the world participated in our game.

#thecodebreakers #photocontest

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Take part in the photocontest
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Find what is hidden.

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Invite friends, register and join the game. For now you can play a single-player game at the Trial level.

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theCodebreakers is created by history and cryptology enthusiasts, volunteers from different countries, and our partners and donors.

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You can support our project by making a donation for its development and / or by helping us, for example, with translations into your language or the promotion of the game in your country.

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We recommend!
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