About This Game

Step into a universe where your most creative ideas come to life.

Myth-OS is an unprecedented AI-driven sandbox that shatters the boundaries of traditional gaming. Imagine having the infinite possibilities of a Tabletop RPG, guided by a dynamic digital Game Master, perfectly fused with the deep, complex simulation of a Grand Strategy epic.

Want to play a JRPG? You can! Want to play a pokemon style game? You can! Depending on how you set up your game, you can play a TTRPG, a Grand Strategy, a 4x, a paradox style crusader kings game, a Romance of the three kingdoms style strategy game, a Dungeons & Dragons campaign, a Pathfinder campaign, a Fallout campaign, a turn based strategy game, the possibilities are almost endless!

From Lone Adventurer to Emperor

Scale your adventure exactly to your playstyle. You can start your journey as a wandering vagabond with nothing but a sword and a dream, exploring ruins and taking on local bounties. But your story doesn't have to end there. Gather followers, build a settlement, and rise to power. Before long, you could be commanding armies, managing global supply chains, and ruling a vast empire.

Your Personal AI Game Master

Experience dynamic, emergent storytelling tailored specifically to your actions. The AI Game Master seamlessly weaves your choices into the world's narrative.

• No Pre-Written Scripts: Quests, events, and NPC interactions are generated dynamically based on your current situation and past choices.

• True Reactivity: If you burn down a village, the AI GM ensures the local lord sends an army after you, and nearby economies suffer from the loss of goods. No two campaigns will ever be the same.

• Your Story, Your Style: Pick how it’s told, from plain and direct to dark and gritty, humorous, or light novel.

• Fight Your Way: Let the story settle a fight, or take control yourself in manual combat.

A Deeply Simulated, Living World

While you are out adventuring, the world doesn't stand still. Myth-OS features a complex, underlying simulation that tracks thousands of entities in real-time.

• Autonomous Factions: Rival empires engage in diplomacy, forge alliances, and declare war entirely on their own.

• Living Economies: Market prices shift based on real supply and demand. Trade routes are established, and resources are physically tracked.

• The Butterfly Effect: A bandit raid you ignored on Day 1 could lead to a kingdom collapsing on Day 100.

• Lives of Their Own: Thousands of people work, travel, trade, grow stronger, grow old and have children, whether you’re there or not.

Let Time Pass: Skip an hour, a month or years. Houses keep deciding, armies march, convoys deliver, and it all goes into the world’s chronicle.

A World You Can Walk Through

• Go from the whole realm to its countries, provinces, towns and buildings, down to the rooms inside, with rivers, roads, bridges and walls.

• Towns grow with their people and are built in their own culture’s style. Zoom in to step inside.

Rewrite the Rules of Reality

Want to play in a completely different setting? You have the ultimate power to reshape the universe. Myth-OS is a genre-agnostic sandbox. You aren't locked into fantasy or sci-fi—you can build whatever you want. Write your own game rules, invent custom technology trees, and shift genres to create your perfect dream game.

Your words reshape the universe. What kind of world will you build?

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

MythOS utilizes Large Language Models (LLMs) to act as a dynamic Game Master, generating real-time narrative text, NPC dialogue, and mechanical game events based entirely on the player's actions. Additionally, the game connects to cloud services or the player's local hardware (e.g., ComfyUI) to dynamically generate 2D character portraits, location backgrounds, and UI assets to bring the world to life.

Connects to 3rd-Party Service for AI Content Generation: MythOS Cloud Simulation Engine

Mature Content Description

The developers describe the content like this:

MythOS is a dynamic, AI-driven sandbox where the narrative is heavily influenced by player choices. Because players can wage war, engage in political espionage, or explore dangerous worlds, the AI may generate text-based descriptions of combat, violence, and death. Players may also encounter mature themes such as crime, alcohol consumption in taverns, moderate profanity, and non-explicit romantic encounters (such as flirting or innuendo). The game relies on standard API safety filters, so explicit sexual violence, non-consensual content, and extreme gore are prohibited by the AI generation.