Life & fun · alternatives · 2026
24 alternatives to Enigma – a walkthrough from Caesar ciphers to a working Enigma machine
I recently went on a long walk (to get newborn twins to nap) and ended up having a long discussion with ChatGPT in voice mode; asking it to explain how the Enigma machine worked and clarifying all the errors in my current understanding. I ended up going right back to basics and then subsequently spent ages failing to understand how it was cracked. Anyway, I built this in an attempt to recreate that arc for people (like me) who find Enigma intimidating: 13 stages, ~15 minutes, ending in a sandbox machine and the "no letter encrypts to itself" flaw that doomed it. Built with React + SVG +…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1

- 2IW
2019 · enigma.lh.mk · its alternatives →
- 3IM
Introducing the 3D Printed Binary Enigma (10 Enigma) – the ultimate encryption and decryption device, no batteries required! Inspired by the iconic Enigma machines of WWII, this sleek and intuitive device lets you encode and decode messages “effortlessly”. Or how else are we going to send secure messages in the future?
2024 · makerworld.com · its alternatives →
- 4

This is a project I made to learn more about crypto. I've also written a [post](https://vaktibabat.github.io/posts/ecurvechat/) that explains all the crypto concepts and algorithms used in the project, and how I implemented them. I'd be very glad for any feedback about both the code and the post :)
2024 · github.com · its alternatives →
- 5

- 6
Enigma Chat▲70A minimalist, locked-down one-to-one chat app.
2019 · play.google.com · its alternatives →
- 7

- 8

Hi HN, I made this small game in my spare time. It's quite addictive, I spent a lot of hours playing instead of polishing it. My own highscore is 96,792. Source code is at https://github.com/MikeBellika/tile-game. It's made with react, tailwind, and framer motion. Hope you enjoy!
2024 · bellika.dk · its alternatives →
- 9

Explore the legendary WWII Enigma machine through an innovative 3D interactive experience. Dive into the world of cryptography and encryption with The Enigma Project.
2025 · enigmasimulator.com · its alternatives →
- 10

Hi HN! This is my first game — something I’ve always wanted to do. It’s a small browser game built with Phaser 3, React, and the phaser template (https://github.com/phaserjs/template-react-ts/). I made it in 2 days (like 8 hours in total real time) using gemini-cli. About 90% of the code was generated with AI, but I learned a lot by making fine tweaks. It only works on PC since it’s a typical WASD + R (reload) shooter. I’d love feedback on: - Gameplay (is it fun, too hard?) - Ideas for new features Thanks in advance! ps: I used cubes as a prototype, but now I kind of…
2025 · cubic-zombies.pages.dev · its alternatives →
- 11MF
I know everyone is a bit burned out on blockchain and cryptocurrency related stuff around these parts, but I've been working on as a side project for the last few months and thought you guys might be interested: https://cryptoempire.io/ It's still a bit buggy and incomplete (the mobile ux needs a lot of work, the leaderboard isn't functional yet, etc.), but I've reached a point where I'm not totally ashamed of sharing it :) Any feedback would be most welcome!
2018 · its alternatives →
- 12

- 13MN
This is an idea I’ve been kicking around for a long time, and I decided to finally code it up. In the same way that Scrabble decomposes words into letters, what if there was a game that decomposed letters into sub-shapes? There’s a lot of directions this could go, and I’m still exploring the possibility space. Enjoy. Suggestions welcome. It doesn’t have a real name yet.
2024 · shovemedia.com · its alternatives →
- 14

Made this game for ReactRIOT, and people loving it 😌
2017 · reactriot-crossword.herokuapp.com · its alternatives →
- 15

Hey HN, A bit of backstory: I was job hunting for months, applying everywhere and racking up a ton of rejections. It got frustrating, so I decided to flip the script and build something useful instead: an open-source take on Cluely, that popular stealth AI tool from the $15M company. I figured why not recreate something that's already out there and buzzing, but make it free, transparent, and way better for privacy. Plus, it felt like a fun challenge. This is actually my first project ever using Tauri, and I'm hooked. I started out trying Electron, but it just wasn't cutting it for something…
2025 · github.com · its alternatives →
- 16

Reloaded with xsalsa20 and ready to help people escape mass surveillance. - enigma-reloaded/enigma-reloaded
2021 · github.com · its alternatives →
- 17

Howdy friends. I've been a zero to one product manager for 12 plus years and along the way I kept borrowing pieces from different discovery frameworks until I had a methodology of my own, one that actually raises the odds of an idea succeeding. This does not replace user interviews obviously, but it leads you in the right direction. Looking forward for your feedback
Jul 2026 · github.com · its alternatives →
- 18IB
I've built a job platform for technical roles called "Cracked Engineers". If you want to land a job with some of the world's best AI/tech startups - my goal is to make this the go-to place for that. YouTube walk-through can be found here: https://www.youtube.com/watch?v=XmuIOdES7mQ A huge thank you to Weaviate (Bob van Luijt & team), Unsloth AI (Daniel Han & Mike), OpenPipe (David Corbitt), Julius AI (Rahul Sonwalkar), Jimini AI (Luis F Voloch) for using the platform while in beta and posting first paid posts. So, why did I build it? Well, over the past period a lot of…
2024 · crackedengineers.com · its alternatives →
- 19IB
It's like a mix between Picross (Nonograms) and Polyominoes. It's a minimalist puzzler which has no text, no tutorials (none required) and no ads set in a relaxing environment. App Store: https://itunes.apple.com/gb/app/shapeuku-shape-puzzle-game/i... Play Store: https://play.google.com/store/apps/details?id=com.dtbgames.s... I have a bulk load of Android promo codes to give away, so if you'd like one let me know! (Sorry iOS users, I have no free codes left!)
2018 · its alternatives →
- 20

Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)
2022 · github.com · its alternatives →
- 21Cryptle▲8
Hi HN! I am Haris, high schooler from Bulgaria and i had a couple of hours laying around and i really love solving puzzles and ciphers! So, I built a game like Wordle but for Cryptography everyday there is a new word ciphered that you have to decode and guess! Would love if you check it out and share your results: cryptle.site
2025 · cryptle.site · its alternatives →
- 22

This weekend I built a multi-agent coding system which, quite unexpectedly, beat Claude Code on Stanford's Terminal Bench! The architecture is straightforward, consisting of an orchestrator agent that deploys explorer & coder subagents to complete complex terminal based tasks, utilising an intelligent context sharing mechanism along the way which makes it all work. The repo has a lot of technical details, and all the code and prompts for you to play around with if you'd like! I had a lot of fun making this, I hope you have fun reading the README, using it yourself, or even extending it! As…
2025 · github.com · its alternatives →
- 23

- 24WS
This is the first project I haven't written a single line of code. The entire codebase was prompt generated in Cursor using mostly Claude Sonnet 4.5. It's also the first time I'm genuinely happy with the end result from AI coding. What do you think?
Dec 2025 · wordsnake.co · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →