World Simulator

What it does

Let the world simulation begin! Dive into any story in first person, as if you were living it yourself. Your choices will influence how the story unfolds. Step into different worlds and live countless adventures.

An experimental world model. Describe a world, watch it come alive in real time — your choices shape the story.

Describe a world. Watch it come alive in real time, and step into it yourself. Your choices shape thefrom worldsimulator.ai

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  Anything World2020 · everythinguniver.se · ▲222

  Create 3D worlds with your voice

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  AI-town, run your own custom AI world SIM with JavaScript2023 · github.com · ▲429

  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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  inZOI2025 · playinzoi.com · ▲193

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  VRChat2018 · hello.vrchat.com · ▲116

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  My Adventures AI2024 · myadventures.ai · ▲11

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  Exists2025 · exists.ai · ▲132

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  AI · Oct 2025 · blog.shashanktomar.com

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  Orchestra▲793

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  Autism Simulator▲779

  Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum. I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism". I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those…

  Life & fun · 2025 · autism-simulator.vercel.app

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  Director▲768

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  AI · 2025 · director.ai