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Alternatives

Products that do what Mythora does

AI RPG world you build together — Worlds remember everything

  1. 1

    Build incredible 2D worlds with friends

    2023

  2. 2

    AI TTRPG and world building game

    2024

  3. 3

    From a word or image to an explorable 3D scene

    2025

  4. 4AT

    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

  5. 5
    Mirage278

    Where you co-create the game as you play it

    2025

  6. 6
    Exists132

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

    2025

  7. 7

    Create 3D worlds with your voice

    2020

  8. 8

    AI RPG where every choice shapes a living fantasy world

    May 2026 · mythx.ai

  9. 9
    Veltos.ai185

    Create games & 3D models with just a prompt

    2025

  10. 10

    Substack For World Builders

    12d ago · loremachine.world

  11. 11

    AI builds your fantasy world. You run the campaign.

    Jun 2026 · getyuga.com

  12. 12
    Magma107

    Foundation Model for Multimodal AI Agents

    2025

  13. 13WE

    Hey HN, After hours of re-watching Brandon’s creative writing BYU lectures[1], we converted his ideas into a framework to rapidly iterate and build sci-fi fantasy worlds. The app is divided into 3 sections: - World: To create a unique magic system intertwined with distinct physical and cultural phenomena - Characters: To create character arcs and give them unique traits that evolve over time - Plot: To weave a series of events in this world following the character arc We are newbie devs, any suggestions on the app improvements and usability would be great! The idea is to capture the essence…

    2023 · worldengine.in

  14. 14

    A multi-agent world model you can play

    May 2026 · agora.odyssey.ml

  15. 15AW
  16. 16YW

    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

  17. 17

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

    Jul 2026 · apps.apple.com

  18. 18
    Kalavai102

    The first platform to crowdsource AI computation

    2024

  19. 19

    Programmable 3D worlds powered by Marble

    Jan 2026

  20. 20

    Collect, Combine, Create: We gamify creativity with AI!

    2025

  21. 21

    Vampiro Life is a dedicated AI Storyteller for Vampire: The Masquerade 5th Edition. Play rules-true chronicles with Hunger, Humanity, dice pools, persistent memory, and a living World of Darkness. Start your dark story tonight.

    Jul 2026 · vampirolife.com

  22. 22

    Hey HN! I built https://tesana.ai/en, a game generation platform that allows anyone to create full games with graphics, game logic, and animations from a simple text prompt - without coding. Tesana has three key features 1. describe your game idea and have Tesana write a game plan for you 2. Build the game iteratively with AI, or let AI self-build the game in a build LOOP. 3) Launch the game on the web, without setting up an engine Tesana has 250 000 builders on the platform today I believe the democratization of game making is a good thing, and hopefully Tesana can help more…

    20d ago · tesana.ai

  23. 23

    Step into living worlds powered by AI

    Feb 2026 · soulfire.app

  24. 24AN

    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

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