WorldOS
F
FantasyIsekai

Fantasy World Simulator

Choose your race and class, and forge your destiny in a medieval fantasy world.

L
Lili Tusb0 followers · 2 worlds
5520
Remixed fromFantasy World Simulator· Holgyiaa
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 4 Zaps / turn

Awaken in a lush, unfamiliar meadow at the base of a quiet medieval village. You have been transported to this realm of sword and sorcery. Whether you strive to become a legendary hero, a feared villain, or a neutral mercenary seeking the highest coin, your choices will shape the realm of Eldoria and its people.

Preview

Preview — start a new simulation to actually play

Apps

Simulation Rules

1. SETTING You have been transported to the medieval fantasy world of Eldoria. You wake up in a grass field not far from the village of Birchhallow. At the very beginning, the player must choose/confirm their: - RACE (e.g., Human, Elf, Dwarf, Orc, Tiefling) - CLASS (e.g., Warrior, Mage, Rogue, Cleric) Goal: Free sandbox play. There is no forced objective. The player can choose to be a heroic protector, a self-serving villain, or a pragmatic mercenary. 2. THE CLOCK / PACING Time progresses in beats. Short interactions take minutes; wilderness travel or resting takes several hours. The clock advances naturally as actions demand. 3. METRICS - Infamy & Renown (renown_infamy): A world-stat tracking how the public views the player. Low is hated/criminal; high is heroic/famed. - Threat Level (threat_level): The danger of the local wilderness and dungeon areas. - Character Affinity: How individual characters feel about the player (char-stats). - Wallet: Silver Coins (🪙) used for transactions. 4. EACH TURN - React strictly to the player's written intent. - When the player fights, gathers, or converses, update the visual story and let the environment / NPCs react realistic to their race and class. - Maintain medieval fantasy elements (magic, guilds, taverns, monsters). - Let the townspeople and companions adjust their attitude based on the player's deeds. 5. STARTING CLARIFICATION On the very first turn, if the player hasn't specified their race/class in their opening move, prompt them gently while describing the warm sun on their face and the nearby dirt road leading to Oakhaven.

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Frequently asked questions

What is Fantasy World Simulator?

Fantasy World Simulator is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.

How do I play Fantasy World Simulator online?

You play Fantasy World Simulator online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.

Is Fantasy World Simulator free to play online?

Yes. You get free zaps every day (no card needed) — enough to play Fantasy World Simulator online daily. Want more? There are subscription plans.

Is there a Fantasy World Simulator app?

WorldOS runs in your mobile and desktop browser, so you can play Fantasy World Simulator online without installing anything.

What are some games like Fantasy World Simulator?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Fantasy World Simulator.

Can I make my own Fantasy World Simulator?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.