NSA CryptoChallenge

from CACI-CMS Information Systems, Inc., originally released 26th August, 2011

Developed by the National Security Agency, NSA CryptoChallenge is a game that tests your pattern recognition skills through a series of cryptographs. Your mission is to decipher encrypted quotes, factoids, historical events and more. It’s you against the clock to see how fast you can crack the cod...

Available for Free on the App Store

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