Program a robot to solve a maze on a CPU emulator
A little game I made to show off an old project. The functionality of the CPU is derived entirely from simulated logic gates. All the operations and control flow are based on the underlying properties of the logic gates, and changing their operation leads to corresponding changes in function. The original game code is all python and it runs in the browser using wasm/pyodide. Not very mobile friendly
Program a robot to solve a maze on a CPU emulator launched on December 8, 2024 with 8 votes and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Running a Python CPU emulator in the browser with WebAssembly. An interactive puzzle built with WASM that bundles a full Python interpreter.
Note: This puzzle is based on a previous blog post of mine. I've reprinted it below (with slight modifications) to provide the context of how this CPU works and why I made it. The functionality of the CPU is derived entirely from simulated logic gates. All the operations and control flow are based on the underlying properties of the logic gates, and changing their operation leads to corresponding changes in function. I've been playing around with WASM (Web Assembly) and decided to resuscitate my old python code from that blogpost in order to run it in the browser. The entire python interpreter is bundled with the game code using WASM in the browser. I thought this was pretty cool. Thanks to…from loreley.one
Does a similar job
all alternatives →
Game where you write Python robots to fight other players2013 · robotgame.org · ▲142robotgame.org is for sale on Spaceship. Secure checkout and quick transfer. See all purchase options. No hidden fees.
Online challenge: Build a CPU from scratch2018 · nandgame.com · ▲143An educational puzzle game. Solve a series of tasks where you build increasingly powerful components. Starts with the simplest logical components and ends up with a programmable computer.
- IMI'm a 14 year-old dev who has programmed an artificial intelligence bot2015 · acuman.us · ▲430
I made a programmable computer from NAND gates2024 · github.com · ▲420I am proud to present my solo hobby project NAND. This year-long undertaking follows the completed Nand to Tetris course, but ported to the web with its own runtime, user interface, and IDE. Using the "Load example program" selector, you can try out some programs I wrote on NAND's emulated hardware such as 2048, a genetic algorithm, and a manual stack overflow to corrupt the screen. Check out NAND at https://nand.arhan.sh Additionally, I've authored an extensive writeup about the project. Read about it on the GitHub repository's readme.
Dungeons and Data Structures 2021 · dnds.gocoder.one · ▲114Bomberman-like arena for bots coded in Python
I made a digital circuit drawing and simulation game2024 · github.com · ▲139Inspired by games like Turing Complete/Virtual Circuit Board/Logic World, I tried to make a mix of aseprite and wiredworld/wired-logic, the idea being the user can build a digital circuit using a "fullstack" pixelart creation workflow. The circuit is just an image. The primitives are (i) connected wires which have undefined, 0 or 1 state during simulation (displayed brighter or darker in function of the state) and (ii) NANDs, which are little pixel triangles. During simulation the user can interact with any wire by clicking on it, toggling its state, which is cool for messing…
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 27d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 25d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲345Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 20d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
