- Enigma I: Army Cipher
The 1938 Army machine, rebuilt properly — real wiring, real stepping, and a keyboard that enciphers as you type.
- Enigma M3: Naval Cipher
The Navy's three-rotor machine, with eight rotors to choose from instead of five.
- Enigma M4: U-boat Cipher
Four rotors and the U-boats' Triton network — the machine that kept the Atlantic dark for ten months.
- Binary O'Clock
The time in ones and zeros, full-screen on your Apple TV.