Legends of Crypto

Collect the minds behind the math

Fifteen illustrated cards for the mathematicians and cryptographers whose ideas secure the world. Unlock each one as you learn, play the arcade, and crack the vaults — then tap to read who they were and what they proved.

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Locked cards show how to earn them. Everything unlocks automatically as your progress grows — no purchases, ever.

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Complete lessons on the path, climb the Arcade high-scores, and defeat the Vault bosses to earn the rarest legends.