The Cipher Bureau

A lighthouse goes dark. An archivist vanishes. Forty dead men keep drawing their pensions. Every answer is hidden in a cipher. The Cipher Bureau is a noir detective game made of cryptograms. Each letter of a document is replaced by a number: find which letter hides behind which number, and the text comes back to life. Every decrypted document is a piece of evidence that moves the investigation forward. TWENTY CASES, TWO CITIES Begin with an actress's missing necklace and follow the trail of Edmund Hale, the archivist who disappeared from the city archive: a lighthouse that shines again after twenty years, a ledger kept in dead men's names, a night train, a sealed storage room. Then cross to London for ten more cases: the night mail, a pawnshop in Limehouse, a parcel from Hatton Garden and fog on the river. Cases open one after another. Collect evidence, pin new leads to the board and read each case's conclusion. A CIPHER EVERY DAY Two hundred daily ciphers: short noir scenes, proverbs and classic quotes, easier early in the week and harder at the weekend. Keep your daily streak going and catch up on days you missed from the archive. THE LIBRARY Lines by Poe, Wilde, Dickens, Shakespeare, Conan Doyle and other classics, unlocked one by one. PLAY YOUR WAY • Enter every letter yourself: a found letter stays lit on the keyboard. • Reveal a letter or ask for a clue to a word when you are stuck. • Pencil marks, undo and redo. • Earn reputation, rise through the bureau's ranks and collect nineteen archive seals, also as Game Center achievements. • Optional daily reminders. • Large text and reduced motion options. NO ADS, NO ACCOUNTS The game works offline. No ads, no accounts, no in-app purchases, and your progress stays on your device. New cases arrive as free content updates. Available in English, Russian and German.