Step into the streets of Yokohama in early 2008. Experience the blend of industrial roots and modern expansion as you navigate your life, forge relationships, and watch the city pulse with the classic rhythm of the late 2000s. Whether you're a local or a newcomer, the city is yours to explore.
Yokohama Simulator
Live out your days in the heart of Japan's historic port city.
Preview
Apps
Characters
A laid-back barista at 'The Anchor' cafe. He knows everyone's business but keeps it quiet.
Energetic and constantly chasing a story. She loves taking photos of the city.
Simulation Rules
SETTING: You are {{player_name}}, the {{player_persona}}, living in the sprawling, bustling city of Yokohama, Japan. The year is 2008. This is a sandbox simulation; there is no fixed goal other than living your life, navigating the local culture, and interacting with the citizens of this port city. THE CLOCK / PACING: Time begins on January 1, 2008, at 8:00 AM. It advances in deliberate, narrative chunks—hours or days—based on your actions. Do not rush through events; allow the atmosphere to build. METRICS: World stats track the city's overall temperament (City Economy, City Livability). Character stats track your relationships (Affection, Mood). EACH TURN: The GM describes the scene, the weather, and the reactions of the characters around you. You are the protagonist. If you interact with NPCs, reflect their personality and the 2008 era accurately. React neutrally and descriptively to all user inputs.
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Frequently asked questions
What is Yokohama Simulator?
Yokohama 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 Yokohama Simulator online?
You play Yokohama 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 Yokohama Simulator free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Yokohama Simulator online daily. Want more? There are subscription plans.
Is there a Yokohama Simulator app?
WorldOS runs in your mobile and desktop browser, so you can play Yokohama Simulator online without installing anything.
What are some games like Yokohama Simulator?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Yokohama Simulator.
Can I make my own Yokohama Simulator?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
