Inside the Arkham City game files (and confirmed by strategy guides), the tower uses a simple substitution cipher where digits map to inside the tower’s junction box. Here is the actual logic:
For those who may be unfamiliar, the Decode Broadcast 2-7-5 3-2-5 is a mysterious message that appears in Batman Arkham City. The message is broadcasted through a series of radio frequencies, and players can stumble upon it while exploring the game's vast open world. The message itself appears to be a cryptic code, consisting of a series of numbers: 2-7-5 and 3-2-5.
broadcasts. While the Riddler frequency is a mission objective, the true "secret" broadcasts are hidden number stations that don't appear on your map: Steam Community Frequencies (X/Y) Decoded Meaning Broadcast 1 "I will return, Batman." Broadcast 2 "You will pay for what you have done to me." Broadcast 3 "Fear will tear Gotham City to shreds." The Riddler's frequency
Within the Arkham City fan community, search queries involving decoded broadcasts often cross paths with a separate set of hidden frequencies. If you tune your Cryptographic Sequencer to other hidden zones on the map, you will encounter true "numbers stations" broadcasting eerie string sequences. batman arkham city decode broadcast 2-7-5 3-2-5
Using the directional analog controls of your controller or mouse, you must align the letters on the screen to spell the correct answer: . Saving Hostage #1
According to audio logs found in the , Hugo Strange designed these broadcasts using a variant of the Caesar Shift Cipher applied to musical note frequencies. Strange was obsessed with the number 5 (representing the five stages of grief, which he believed Arkham inmates needed to be forced through). The numbers 2-7-5 and 3-2-5 correspond to the notes D4 and E4 on a piano, which in turn spell "D.E.A.D." when translated using Strange’s personal cipher key (found in his office).
"I'm locking it in," Batman growled. His fingers moved across the holographic interface of the Sequencer. The device hummed, the visualizer on the screen spiking as it caught the signal. Inside the Arkham City game files (and confirmed
Trust known answer: — that’s the hidden broadcast password.
The broadcasts use a where each number corresponds to a letter position in the alphabet (A=1, B=2, ..., Z=26).
Have you found other hidden ciphers in Arkham City? Share your discoveries in the comments below. The message itself appears to be a cryptic
The Enigma Begins: Decoding Batman: Arkham City Broadcast 2-7-5 3-2-5
Instead of a simple “destroy the receiver” objective, this tower presents a riddle. Upon grappling to the top, Batman will analyze a control panel. A cryptic message plays over the speakers: a series of tones or numbers, followed by a flickering display reading and then 3-2-5 .
Key 2 → letters: A=1, B=2, C=3. “2-7” would mean key 2, 7th letter — impossible unless wrap? But in some puzzles they use modulus or just ignore invalid.