AI-town, run your own custom AI world SIM with JavaScript
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…
In plain words
AI-town is a deployable starter kit for creating custom AI simulations where autonomous characters live, interact, and socialize in a virtual environment. Built with TypeScript and powered by a Convex server-side game engine, it supports multiplayer functionality and is ready to deploy. Developers can fork the project and customize character memories, sprites, and tiles to build their own unique AI worlds. The tool is designed for developers who want to experiment with generative AI agents inspired by Stanford's research on simulated social environments.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
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 The goal is to democratize building your own simulation environment with AI agents. Would love to see the community build more complex interactions on top of this. Let us know what you think! Demo: https://www.convex.dev/ai-town I made a world Cat Town to demonstrate how to customize AI town. Using C(h)atGPT :) Demo: https://cat-town.fly.dev/ Code: https://github.com/ykhli/cat-town
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