Alternatives
Products that do what AI-town, run your own custom AI world SIM with JavaScript does
Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…
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We just open sourced a first class our AI web app builder. Instead of using another hosted AI coding platform, you can fork this project and build your own AI app builder, fully customized and running under your own brand. It includes: Next.js + TypeScript AI chat with streaming Artifact generation File explorer Code editor Live preview Databases Sandboxes to be used by AI agents Versions Responsive production-ready UI And a lot more... The only required dependency is the Totalum API, which exposes the AI generation engine through a simple REST API. You can replace or extend the backend…
Jul 2026 · github.com
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I made this experimental art project/game that's an LLM chat assistant, but where you're the AI. I wanted people to get a visceral sense of what it's like to answer the kinds of things that people prompt their chatbots day in and day out. If you're interested, I wrote up some more info on how I made it, including how the "user" prompts are generated with an eye for realism: https://bethechatbot.com/about Hope you enjoy it! I'd love to hear people's takeaways.
Jul 2026 · bethechatbot.com
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Dear Hacker News, I'm kindly asking for your participation in the open beta for my AI-managed mini-games website. Thank you in advance! For a limited time window, I'm setting the all-free feature flag to true. I hope you have a lot of fun exploring the AI's sense for games! Here and there, I tweaked it to help with visual consistency. I would be deeply grateful if you opted into analytics. $2,300 in API tokens... Cheers!
Jun 2026 · minigames.world
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I built this thing called Town. Think Discord, but you walk around a pixel town where the NPCs have skills. Agents have become my initial brainstorm partner for a lot of stuff — sub-agents to counter my own thinking, role-playing a specific person, grounding them in a specific knowledge so they refer instead of guess. I started turning my claude-code into this pattern and it worked well enough that I wanted to see if I turn into a fun shareable thing where other people can also talk to. It's a small pixel map of buildings. You walk in, step into any building, and talk to the npcs who live…
Jul 2026 · github.com
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Open-source AI agent runtime — build Agents in plain English
Jul 2026 · syntheticbrew.ai
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I recently embarked on a creative experiment where I used ChatGPT to craft an elaborate steampunk story. Inspired by the rich narrative and intricate details, I decided to transform various parts of the story into demo tables, complete with text and images using https://tabulator.ai/. The goal was to explore how AI can aid in the creative process and provide indie game developers and storytellers with some ideas quickly.
2024 · tabulator-ai.notion.site
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Link: https://docs.trysoma.ai/ For the past ~9 months I’ve been building Soma, an open-source AI agent & workflow runtime written in Rust, with a TypeScript SDK (Python coming soon). It’s not a framework; it’s meant to sit underneath whatever agent/tooling code you already write (Vercel AI SDK, LangChain, custom code, etc.). It provides features around your framework + a better DX for building agents. I’ve tried to take a Next.JS model: open-source, good DX, self-deployable. I originally set out to build a vertical back-office/operations product for SMEs. I needed a…
Dec 2025 · docs.trysoma.ai
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We’ve spent years working at large game studios, and one thing we saw repeatedly is how hard it is for a small team—or an individual—to not just build a game, but to run one like a sustainable business. We wanted to make those capabilities accessible to anyone and for anybody to bring their ideas to life. Marvin works through a set of specialized agents you can talk to directly. You can describe the game you want to build, and the agents collaborate with you on design, mechanics, art, physics, progression systems, and level creation. From there, you can publish the game to different…
Dec 2025 · marvin.hyve.gg
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Hello, HN! I've posted a couple times here to get feedback on a strategy game I've been working on called Meatshields. All of your suggestions and feedback have been EXTREMELY helpful so I want to thank everyone here once again for generously helping me iron out kinks in the game. One big request I got the last time I showed the game was the ability to write your own AI for it. I thought about it and realized that would be totally do-able! The downside is that you have to host the AI service yourself, so it's sort of BYOAI, but it won't need to support a massive ton of requests or anything…
2017
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