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Alternatives

Products that do what YourWorlds does

Role-play worlds that write themselves

  1. 1

    AI TTRPG and world building game

    2024

  2. 2

    Brains for virtual characters, powered by AI

    2022

  3. 3AT

    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…

    2023 · github.com

  4. 4

    Fully immersive DnD inspired experience powered by AI

    2024

  5. 5
    ZumiGames238

    Your AI pet with a mind (and adventures) of its own

    2025

  6. 6

    A retro RPG with a modern twist: AI-Powered NPC dialogues

    2023

  7. 7
    Exists132

    Generate your own 3D worlds and team-deathmatch in minutes

    2025

  8. 8

    Create 3D worlds with your voice

    2020

  9. 9
    SIMA 2204

    Google's most capable AI agent for virtual 3D worlds

    Nov 2025 · deepmind.google

  10. 10LP

    Took a break from the falling sand simulation blog posts this week to work on another small project. It's a little pixel world generator- each time you visit, you'll see a new little world. I really like this stuff and had a blast building it yesterday!

    2022 · jason.today

  11. 11
    Kingdom109

    A 2D multiplayer virtual gaming world with AI NPC

    2023

  12. 12
    Palworld145

    Fight, farm, build and work alongside mysterious creatures

    2024

  13. 13
    Propeller134

    Master your skills through immersive roleplay

    2024

  14. 14

    Browser-based MMO universe. Minecraft in 2D.

    2014

  15. 15

    Solo, voice-driven D&D with an AI dungeon master

    Jul 2026 · apps.apple.com

  16. 16
    Redbean88

    Bring your original characters to life

    Mar 2026 · redbean.ai

  17. 17

    Gamify your Success, Level up in LiFE

    2024

  18. 18

    The AI life sim where the world actually remembers

    Jul 2026 · altworld.io

  19. 19AN

    Most games have limits. You can only use preset features, need coding for customization & adding mods, require expensive extra devices. We wanted to remove those barriers. That’s why we are building space zero—a browser based 3D world powered by AI. We plan to build players can freely mix items to generate unexpected creations with unique properties and sounds. Also the world itself is dynamically generated, evolving endlessly. I uploaded a demo version I’ve been working on for the past month! I hope to get any feedbacks or comments :)

    2025 · 0.space

  20. 20AA
  21. 21

    Gamify your Life, Play your own story.

    Jan 2026 · liferpg.site

  22. 22YW

    Hi HN, I'm Kai Wang, one of the creators of Yuanzai World. We built a simulation engine (currently on iOS & Android) that allows the community to create and share text adventures populated by multiple LLM-based agents. Unlike standard chatbots, our focus is on community co-creation—users define the worldviews, and our agents (with persistent memory and social relationships) bring them to life. The cool part: We implemented a system we call "World-Line Divergence" (inspired by visual novels like Steins;Gate). Usually, AI RPGs feel random or infinite loop. We built a state machine that tracks…

    Jan 2026 · yuanzai.world

  23. 23

    Prompt-to-play platform for gamers & creators

    Oct 2025

  24. 24IM

    It has reasoning engine behind, and all role play are private. Stronger and more intelligence role play AI.

    2025 · wiyomi-role.vercel.app

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