Cryptography games & apps
Creations tagged cryptography on 8x — every one is playable in the browser and open to remix.
2 creations

Ciphermind — Cryptography Trivia & Shareable Scorecard
Ciphermind is a cryptography trivia quiz on real ciphers, codes, and crypto history. Pick a topic, answer a curated set of questions, earn a themed rank from your score, and export a polished canvas-rendered scorecard PNG to share. A pure no-build static front-end.

SIGNAL & NOISE
A cryptanalysis campaign on a bakelite desk of working instruments. Twenty-four intercepted messages, six families of cipher, and a frequency counter, substitution board, Vigenere slide with a Kasiski drum, transposition grid, three-rotor KESTREL machine and crib bench to break them with. Every slip is a real, solvable puzzle with one deterministic answer: read the day's brief, take the promised crib, form a hypothesis and watch the clarity meter rise as the plaintext comes out of the noise. No trivia, no luck, no hidden information — only deduction, and a green lamp over the work.