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Alternatives

Products that do what ProtoCog does

Raise your very own Markov chain from scratch.

  1. 1

    Insanely fun card game that teaches kids the basics of code

    2015

  2. 2

    An indie game built with no code

    2019

  3. 3DT

    at a pub in london, 2 weeks ago - I asked myself, if you spawned agents into a world with blank neural networks and zero knowledge of human existence — no language, no economy, no social templates — what would they evolve on their own? would they develop language? would they reproduce? would they evolve as energy dependent systems? what would they even talk about? so i decided to make myself a god, and built WERLD - an open-ended artificial life sim, where the agent's evolve their own neural architecture. Werld drops 30 agents onto a graph with NEAT neural networks that evolve their own…

    Feb 2026 · github.com

  4. 4TL
  5. 5CG

    Wordbots is a long-running side project I've been working on on-and-off for the past ~7 years that I finally feel comfortable enough with to share with the HN community. It's an online tactical card game (inspired by games like Hearthstone and Magic: the Gathering), where players write their own cards in natural language, that gets parsed down to JavaScript. The English-to-JavaScript translation is handled by a semantic parser operating on a hand-crafted CCG grammar – kind of an “old-school” approach in this age of LLMs but one that performs quite well on the very constrained language of…

    2023 · app.wordbots.io

  6. 6RI
  7. 7CY

    2021 · aperocky.com

  8. 8WC
  9. 9LG
  10. 10TP

    Hi HN, I have been working on this website for a few weeks with some buddies of mine and would love if you checked it out. TuringJest provides a jackbox-esque experience with its two game modes. *One Shot Prompt* - Submit a prompt for all players (including the AI) to answer. - Answer your prompts in the way that you think ChatGPT would answer them. - Vote for who you think the real AI is. *Talk It Out* - Plan an event in a group chat with your friends. - Trick everyone into thinking you are the AI while voting for the real AI. Let me know what you think!

    2023 · turingjest.app

  11. 11

    A word game

    2015

  12. 12CT

    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!

    Jan 2026 · michae2.github.io

  13. 13

    Master the chaos: Spatial logic meets linguistic skill.

    Jan 2026

  14. 14AE

    I built a procedurally generated word-search game where the puzzle never ends - as you scroll, the grid expands infinitely and new words appear. It’s designed to be quick to pick up, satisfying to play, and a little addictive. The core game works without an account using the pre-defined games, but signing up allows you to generate games using any topic you can think of. I’d love feedback on gameplay, performance, and whether the endless format feels engaging over time. If you try it, I’d really appreciate any bug reports or suggestions. Thanks in advance!

    Dec 2025 · endless-wordsearch.com

  15. 15CA

    Hey HN, just wanted to share a fun, vibe-coded Friday night experiment: a little playground for writing cellular automata in a subset of Rust, which is then compiled into WGSL. Since it lets you dynamically change parameters while the simulation is running via a TUI, it's easy to discover weird behaviors without remembering how you got there. If you press "s", it will save the complete history to a JSON file (a timeline of the parameters that were changed at given ticks), so you can replay it and regenerate the discovery. You can pan/zoom, and while the main simulation window is in…

    Feb 2026 · github.com

  16. 16G

    2013 · github.com

  17. 17TA

    Hello HN, Introducing VocabGenii.com, my online vocabulary game. It is the first product from my company, Genii, Inc., that brings innovative, engaging new learning experience to the market by leveraging web 2.0 and social networks. Currently, we are running a 10K Challenge -- anyone scoring 10,000 points before the contest ends (March 24 04:00 GMT) will get 3-Month unlimited play. Exceptional performance would also be recognized in our 10K Hall of Fame with limited edition trophies! We're hiring! If you have disruptive ideas on language learning and online education, and possess…

    2011

  18. 18PC

    Built this with my roommate over the weekend. At the end of the game, GPT will share its reasoning for each choice, which yields some funny results and explains why its so hard to win. Enjoy!

    2023 · codenames-with-gpt.netlify.app

  19. 19
    Jello15

    Create games with photos and sounds, share & compete

    Jan 2026

  20. 20AB
  21. 21IM

    Hi everyone, Wanted to share a game I built. It's called Unscramble! and I believe it's the simplest word building game. Rules: You get a few letters on screen. You need to make one word with all the letters. Tap a letter to select. Tap again to deselect. Faster you go, better you score. If you enter anagrams of the word it's looking for, it gives you extra points. If you are stuck, you can either "Ask Friend" or get Hint. You get extra points for getting the word fast but you don't get penalized for taking too long. I believe the simplicity of the game along with big touch buttons makes it…

    3d ago

  22. 22PB

    Hey guys, I’ve been playing around with this prototype for a way to build games using GPT. Some details: - It’s an absolute hack right now; expect bugs and user unfriendliness. Also UI is not fixed for mobile yet (use desktop). - It’s top-down, 2d. You view the world from above, and you can move around by clicking and dragging the world. - It’s using gpt-4-turbo under the hood, and I’m outputting typescript code, which gpt will self-repair when there are type errors. - Here’s a simple example game: https://prompty-58a21.web.app/dune/play So far I’ve been quite impressed…

    2024 · prompty-58a21.web.app

  23. 23TA

    What began as a lightweight programming experiment quickly transformed into a deeply engaging technical exploration into the realms of neuroevolution, game physics, and browser-based simulation. My original goal was modest: replicate the "Chrome Dino" game using a performant and modern web stack. However, the project evolved far beyond expectations. The twist? I wanted the dinosaur to teach itself to jump.

    2025 · fulgidus.github.io

  24. 24SB

    2021 · strangebinary.com

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