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Dev tools · alternatives · 2026

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Open-source Piet Mondrian-inspired Pong is a development tool launched in 2014 that combines the classic Pong game with the visual style of artist Piet Mondrian. The project is aimed at developers interested in game… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open-source Piet Mondrian-inspired Pong launched in 2014; newer entries below may have overtaken it.

  1. 1IM

    Hi HN! I made many small web games in the past with Unity or Phaser. But this time I wanted to make something completely on my own. So I coded a basic game framework in plain JavaScript, and used it to make Almost Pong. This was a really fun project that taught me a lot about JavaScript, and I plan to make more minimalist games with this framework. Interesting fact: Almost Pong doesn't load any assets, all sprites and sounds are generated with code. Happy to answer questions, and please let me know if you have any feedback on the game. Thanks!

    2022 · lessmilk.com · its alternatives →

  2. 2

    Create your own art with amazing speed and flexibility

    2021 · its alternatives →

  3. 3IO
  4. 4

    Create unique artworks in the style of Piet Mondrian

    2023 · mondriangenerator.io · its alternatives →

  5. 5

    I need your feedback guys, your contributions are welcome too.

    2024 · github.com · its alternatives →

  6. 6

    Virtual art studio and gallery inspired by Piet Mondrian

    2021 · mondrian.fun · its alternatives →

  7. 7II
  8. 8

    Retro RPG Game Maker. Contribute to ericoporto/fgmk development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  9. 9

    Hi HN, Nick here. We’re launching OpenKnowledge (https://openknowledge.ai/), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and other agents. Available as MacOS app or Web UI+CLI. Fully free/local and OSS. We built this because we wanted a Notion-like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true WYSWIG UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes…

    Jun 2026 · github.com · its alternatives →

  10. 10

    A replayable arcade shooter where you control a snake of heroes. - a327ex/SNKRX

    2021 · github.com · its alternatives →

  11. 11

    Inspired by the design and UI/UX of apps like Notion, and utility of open-source apps like StackEdit, I decided to create a minimalistic, local-only WYSIWYG Markdown editor. Some features worth highlighting: - Monaco editor and Prettier integration for code snippets - Tables (apparently the holy grail of WYSIWYG editing) - Embeds (for CodePen, CodeSandbox and YouTube, most useful for HTML or JSON exports) - Accepts Markdown paste-in, and "exports"/generates HTML, Markdown and JSON outputs - Collaboration (with real-time awareness and initial commenting system, available only when…

    2023 · editor.vrite.io · its alternatives →

  12. 12

    A collection of code samples for the Uno Platform. Contribute to unoplatform/Uno.Samples development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  13. 13IB

    I've been working on an MMORPG that is now in alpha as a solo developer. Here are the major open source technologies that I use: Blender - 3D modeling software for creating the overall environment and every game object. I've gotten a lot of CC and Public Domain assets from https://poly.pizza GLTF - I export assets from blender to the GLTF asset format JSON - I write a JSON config for every game object that describes things like its name, its interactions, its collisions, etc. Node.js exporter - I iterate over the environment and every asset to create a scene hierarchy. I use…

    2024 · alpha.reconquer.online · its alternatives →

  14. 14PW
    Pong Wars▲490

    The eternal battle between day and night, good and bad. Written in JavaScript with some HTML & CSS in one index.html. Feel free to reuse the code and create your own version.

    2024 · pong-wars.koenvangilst.nl · its alternatives →

  15. 15

    A flat pixel art editor. Contribute to maierfelix/poxi development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  16. 16

    Building a 1D-Pong game is a bit of a rite of passage at the Chaos Communication Congress. I was inspired by a version I saw at 38C3 and built my own interpretation for 39C3. Lots of people enjoyed playing it and even Elliot Williams featured it in his 39C3 Hackaday Podcast. And I can attest: it's truly fun because it's sooo simple at first sight - but wait until the speed increases... Not a bad work to fun created ratio for such a little project. I used the opportunity to play around with Claude Code on my preexisting codebase to publish a nice-ish repo on GitHub. It worked great without…

    Jan 2026 · github.com · its alternatives →

  17. 17

    A retro game engine for Python. Contribute to kitao/pyxel development by creating an account on GitHub.

    21d ago · github.com · its alternatives →

  18. 18

    Proof of concept for a color mixer interface. Contribute to grgrdvrt/poulette development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  19. 19

    Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io

    2023 · github.com · its alternatives →

  20. 20

    🖼️ Generate Piet Mondrian Art. Contribute to andronov04/mondrian-art development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  21. 21

    LLM-generated real-time commentary for Pong. Contribute to pncnmnp/xpong development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  22. 22

    Hey HN OpenCopilot is an OSS framework which helps devs to build open-source AI Copilots that actually work and embed into their product with ease. Why another LLM framework? Twitter is full of impressive LLM applications but once you peel off the curtains it’s clear that they are just demos. The reason being because building an AI Copilot that goes beyond a Twitter demo can be complex, time-consuming and unreliable. Our team has been in the AI space since 2018 and built numerous LLM apps & copilots. While doing that, we got approached by many startups saying they’d also like to build a…

    2023 · github.com · its alternatives →

  23. 23CP

    Hi HN! 2d spritesheets for game development are often distributed as a PNG image, sometimes with a separate JSON or XML metadata document describing the layout, including any animation sequences within the sheet. Sometimes there is no metadata document and you have to work it out and manually write custom code to chop up the spritesheet and reference the sprites you want. I think it would be good if it became standard practice to distribute spritesheet PNGs with the metadata inline inside a PNG "chunk" so the whole thing is self-contained. That way artists can just distribute one file, and…

    2019 · mccormick.cx · its alternatives →

  24. 24
    OpenFang▲255

    Open-Source Agent Operating System

    Mar 2026 · openfang.sh · 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 →