Virtual Lorenz SZ40/42 3D

The Lorenz SZ40/42 was a formidable cipher attachment used by the German High Command. Use the machine that Colossus was built to break.

A fully working, 3D simulation of the first electronic computer which broke the German Lorenz cipher during WW2 at Bletchley Park.

Enigma machines were a series of cipher machines developed in Germany between 1923 and 1945. The cipher was cracked initially by the Polish and then expanded on and broken daily at Bletchley Park. This is a fully usable 3D simulation of two models of Enigma.

Don't have the computer power to run a Lorenz SZ42 in 3D? Try our original 2D version from 2017 instead.

The Dragon was built by the Signal Security Agency (SSA) at Arlington Hall, Virginia and was used at Bletchley Park to help break Lorenz codes. It was used to search for a crib (a guess at the text) within the cipher message.

Typex was a British cipher machine which used a very similar method of enciphering to Enigma. It was also used at Bletchley Park to decipher Enigma messages once the Bombes had found the day key.

E.R.N.I.E stands for the Electronic Random Number Indicator Equipment and is a hardware random number generator built in 1956 to find winners each month for the National Savings Premium Bond prize draw.

A simulation of the ICT 1301 2nd generation computer, specifically serial number 6, named Flossie.