EYES ONLY · BURN AFTER READING

Operation Cold Cipher

Breach five doors · recover the dossier

5 roomscipher · deductionmedium-hard

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cipher · deduction

Sealed doors stand between you and the dossier — each held by a Soviet cipher-lock. No brute force, no noise. Read the room, find the key in plain sight, open the lock. The deeper you go, the colder it gets.

A sealed records facility east of the Wall. Breach five Soviet cipher-locks — a checkpoint tally, a custody key-board, a depot manifest, a darkroom negative, and the inner vault — and reach the car before the patrol returns.

  • Agent

    You — codename SPARROW. Deep cover, currency clerk.

  • Location

    A sealed records facility, somewhere east of the Wall.

  • Objective

    Recover the BLACKBIRD dossier from the inner vault and reach the car before the patrol comes back.

See inside the rooms

  • Operation Cold Cipher — room 1
  • Operation Cold Cipher — room 2
  • Operation Cold Cipher — room 3

Operation Cold Cipher

Breach five doors · recover the dossier

This game opens after Blackthorn College. Play it now with full access

On your own

Unlock every solo game

  • Every room in every solo game, open now
  • No waiting 24 hours for the next room
Pay once. No subscription, no expiry date.

Questions about playing? Read the FAQ