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Life & fun · alternatives · 2026

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24 alternatives to C-TURTL, a turtle graphics game

Happy New Year! Here's a small turtle graphics game I made for my kids, that I want to share. You write the "DNA" of the turtle, and watch what happens. Any comments or suggestions appreciated!

C-TURTL is a turtle graphics game where players write DNA code to control a turtle's behavior and watch it draw patterns. The game is designed for children and anyone interested in creative coding through visual… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Turtle Graphics for p5.js / JavaScript. Contribute to CodeGuppyPrograms/TurtleGFX development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  2. 2CC

    Hello HN! Back in 2023, I introduced CFRS[], a minimalist drawing language with turtle graphics, featuring just six simple commands, through a "Show HN" post (https://news.ycombinator.com/item?id=37956065). Since then, I've received a number of creative patterns and animations created using this tiny, esoteric language by the small and friendly community that has since formed around it. In this post, I intend to share some of these interesting creations with everyone to highlight the ingenuity of their creators. If you create an interesting demo using this language, please…

    2025 · its alternatives →

  3. 3

    An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  4. 4

    This is a little toy project of mine that lets you simulate digital logic graphs. It was inspired by Minecraft's Redstone and the Piet esolang. It's got some serious drawbacks-- you write circuits as PNGs and simulate them with a Python interface. It's slow to run and slow to experiment with. And it is certainly difficult to use for people with any kind of color blindness. But despite that, I hope this can still be a fun toy!

    2022 · github.com · its alternatives →

  5. 5TA
  6. 6MP

    I have been working on this game somewhat sparsely for the past three years or so. However, it is still in a very early stage, and there is a lot of work to do. One of my friends encouraged me to post about it here, since he felt people might find interesting how I don’t use any libraries for it. The game can be played on a browser by virtue of WebAssembly. There are native ports using either MiniFB or SDL2, but you have to build those yourself. I decided to write the game in C because I feel like it is a simple language that a lot of people can understand well enough, and I didn’t think I…

    2023 · zamfofex.neocities.org · its alternatives →

  7. 7

    The game for little programmers

    2015 · exploratoriumstore.com · its alternatives →

  8. 8
  9. 9

    Retro Game Engine for Racket. Contribute to massung/r-cade development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  10. 10

    Still very much a work in progress, but really wanted to share this even in it's early state. Had heaps of fun building it to learn more about WebRTC.

    2023 · github.com · its alternatives →

  11. 11

    Learn to code with turtleSpaces — a free Logo programming environment with 3D turtle graphics. Create art, games and animations right in your browser. A great next step after Scratch.

    2024 · turtlespaces.org · its alternatives →

  12. 12

    Hello everyone! It was so fun working on this project for the past few months with some of my fellow high school students :) I am so excited to share our first prototype and hopefully we'll be done with it all soon! <3 (ofc, it's open source, contribute here: https:&#x2F;&#x2F;github.com&#x2F;hackclub&#x2F;sinerider) The goal of the game is to slowly teach function composition that get progressively more complex while you also help the ghosts ski on the slopes and explore the entire map!

    2022 · sinerider.com · its alternatives →

  13. 13

    Inspired by games like Turing Complete&#x2F;Virtual Circuit Board&#x2F;Logic World, I tried to make a mix of aseprite and wiredworld&#x2F;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…

    2024 · github.com · its alternatives →

  14. 14BB

    I made a Brainfuck interpreter ( https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Brainfuck ) with additional commands for turtle graphics. Check it out: https:&#x2F;&#x2F;czterycztery.pl&#x2F;programy&#x2F;turtlefreeze&#x2F;

    Jun 2026 · czterycztery.pl · its alternatives →

  15. 15
    URL Snake▲114

    Just a little demo I made of a fully functioning game of snake encoded entirely within a valid url (around 1033 bytes of code encoded into a 1464 byte url).

    2023 · github.com · its alternatives →

  16. 16

    Creating high-quality scientific figures can be time-consuming and challenging, even though sketching ideas on paper is relatively easy. Furthermore, recreating existing figures that are not stored in formats preserving semantic information is equally complex. To tackle this problem, we introduce DeTikZify, a novel multimodal language model that automatically synthesizes scientific figures as semantics-preserving TikZ graphics programs based on sketches and existing figures. We also introduce a Monte Carlo Tree Search-based inference algorithm that enables DeTikZify to iteratively refine its…

    2024 · github.com · its alternatives →

  17. 17IM

    I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript&#x2F;Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units&#x2F;buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…

    2022 · battle-of-flags.com · its alternatives →

  18. 18

    Turtle is a macOS web browser whose rendering engine — HTML parser, CSS cascade, layout and paint — is written completely from scratch in Zig, with Google

    Jul 2026 · code.intellios.ai · its alternatives →

  19. 19

    A top-down 2d game engine, written from scratch in under 1000 lines of C. Development of the game based on this engine is streamed on Twitch: https://www.twitch.tv/ryanpcmcquen - ryanpcmcquen/basque

    2020 · github.com · its alternatives →

  20. 20

    In this blog post, we present a port of the Snake game to Twitter. We detail some of the game design choices we made, along with code and explanations.

    2016 · yro.ch · its alternatives →

  21. 21

    I made a web game inspired by Geoguessr and Wordle, where you get shown a 3D model of a random human protein each day, and you have to triangulate its gene name using similarity clues. My background is in wet lab molecular biology and I intend this game to be engaging mostly to other biologists. But if you're outside the field, I'm interested to know if you can still solve it with browser use LLMs, and if you learned something interesting doing so. Let me know what you think. I made it with Claude over the last 2 months. My coding experience is limited to basic python data analysis and…

    Dec 2025 · geneguessr.brinedew.bio · its alternatives →

  22. 22PT

    Hello Hacker News! I’ve been having some fun recently and I wanted to share with you. My idea was to feed ChatGPT an image and ask for a caption, feed that back to DallE, then call this in a loop, and observe how the image that was generated changed over time. Similar to playing the game “telephone”. The results were really intriguing, so I built something that you can play with. Note this is best on a desktop (streamlit is optimized for a large screen), but if you’re on mobile you’ll want to expand the sidebar to start — it’s the carrot on top. My initial intention was for you to be able to…

    2023 · share.streamlit.io · its alternatives →

  23. 23

    Educational game helping children learn the basics of coding

    2017 · apps.apple.com · its alternatives →

  24. 24

    "Learn Python with Fun – Help the Turtle Cross the Road!"

    2025 · ismaeelrj.gumroad.com · its alternatives →

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