Virtual SG-41 project brings Nazi cipher machine to life in the browser
https://www.theregister.com/2026/04/08/virtual_sg41/
Virtual SG-41 project brings Nazi cipher machine to life in the browser
: Martin Gillow's 3D recreation lets users explore would-be Enigma successor's mechanics and enciphering logic online
10 Years of Virtual Colossus: 2026
And we're up to date and therefore, today is the release of my latest project: Virtual Schlüsselgerät 41
After a year of work try it out for yourself using just your web browser.
Hope you like my new website design too!
https://sg41.virtualcolossus.co.uk
Released today: Virtual Schlüsselgerät 41
This cipher machine, based on Hagelin C-38 but WAY more complex was set to replace Enigma.
Over a year of work & research & it's ready for you to try for yourself.
https://sg41.virtualcolossus.co.uk
@ccr
10 Years of Virtual Colossus: 2025
Did you know that Turing designed a valve computer using mercury delay lines as memory after the war? The pilot machine ran 75 years ago and was recreated as Virtual Pilot ACE this year. And we're up to date .. excited for release of Virtual SG-41 tomorrow! pilotace.virtualcolossus.co.uk
10 Years of Virtual Colossus: 2024
The next sim I worked on was the M-209, an American version of the Hagelin C-38. A new resource, the CT scans of the machines at @DeutschesMuseum, meant I could very accurately model each part giving amazing detail!
https://m209.virtualcolossus.co.uk10 Years of Virtual Colossus: 2023
We have already completed Colossus and Lorenz SZ-42 but we only had Enigma working. It was time to learn about the Turing-Welchman Bombe and to begin building it into a fully working simulation.
https://bombe.virtualcolossus.co.uk10 Years of Virtual Colossus: 2022
The next machine to get 3D treatment was one I really enjoyed learning about, the Lorenz SZ-42. I completed a 2D version in 2017, but wondered if I could do this technological marvel justice. It ended up as one of my favourite sims I've ever done.
https://lorenz.virtualcolossus.co.uk10 Years of Virtual Colossus: 2021
Now, with new 3D skills, it was time to attempt a machine that I'd always felt already had many great sims.
And so, I created my most visited sim yet:
Virtual Enigma both model I and M4, complete with radio & Morse key. enigma.virtualcolossus.co.uk
Two new sims were completed this yr and little did I realise that Virtual Typex would be the last in 2D. I started playing with a library called three.js and ended up recreating Virtual Colossus in full 3D! This was how it continue to today ...
10 Years of Virtual Colossus: 2019
In this year, I created a sim of E.R.N.I.E to celebrate the new 5th version. A hardware random number generator built in 1956 to find winners for the UK Premium Bonds. Designed by Harry Fensom who worked at the GPO Research Station, Dollis Hill
