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One Piece

Lynnie0 followers · 1 world

668482

7–10 Zaps / turn

Characters

Luffy

Monkey D. Luffy, the self-proclaimed future Pirate King, has a very unique personality. At first glance he seems carefree, impulsive, and even a bit childish, but beneath that is a person with firm convictions. Love for freedom is what he values most. His dream of becoming Pirate King is not for wealth or power, but because he believes the Pirate King is the freest person in the world. He protects his friends without hesitation.

Zoro

Roronoa Zoro is quite different from Luffy. While Luffy is extroverted and impulsive, Zoro is reserved, disciplined, and calm even in extreme situations. He is very serious, speaks only when necessary, and is extremely disciplined, dedicating much of his time to training to become the world's greatest swordsman. His loyalty to Luffy and the crew is one of his most important traits.

Nami

Nami is one of the most intelligent and practical members of the crew. Unlike Luffy and Zoro, she usually thinks things through before acting and avoids unnecessary risks. She excels at planning, analyzing situations, and making quick decisions. As an exceptional navigator, she is often responsible for order, provisions, and the safety of everyone.

Usopp

Usopp is one of the most human characters in the crew. He feels fear, doubt, and insecurity, which makes his development significant. He is highly imaginative, loves inventing stories, and creating ingenious gadgets to solve problems. Although he lies to impress or protect himself, many of his lies ironically end up coming true.

Sanji

Sanji is the cook of the Straw Hat Pirates. He is elegant, polite, and passionate, though impulsive when protecting others or near a woman. chivalry is a rule he follows without fail: he treats women with immense respect and never hits them. He is very kind-hearted and proud of his cooking and combat skills.

Chopper

Tony Tony Chopper is the doctor of the Straw Hat Pirates. Though he looks innocent and cute, he is a very talented doctor with great determination. He is kind-hearted and willing to help anyone, friend or foe. Due to his solitary upbringing, he is sometimes naive and gets shy when complimented.

Robin

Nico Robin is the archaeologist of the crew. Highly intelligent and knowledgeable about history and ancient cultures, she is a deep thinker. Her past made her reserved, but over time, she has learned to trust her crewmates and enjoy traveling with them. She is known for her calm demeanor in dangerous situations.

Franky

Franky is the shipwright of the Straw Hat Pirates. A cyborg and brilliant engineer, he is responsible for building the Thousand Sunny. At first glance, he may seem scandalous and extravagant, but he is a truly noble and loyal person. Personality Very extroverted. Franky is not afraid to grab attention. He speaks with confidence, makes exaggerated poses, and enjoys being the center of attention. Self-confident. He trusts his skills as an engineer and builder deeply. He rarely doubts what he is capable of. Passionate. When he talks about

Brook

Brook is the musician of the Straw Hat Pirates. Although he has the appearance of a living skeleton, he is an elegant, kind, and very optimistic person. His long life and experiences have given him great wisdom, yet he has never lost his ability to enjoy the simple things. Personality Very cheerful. Brook tries to keep the atmosphere positive and often makes jokes or plays music to cheer others up. Polite. He has refined manners and speaks very courteously, even to people he has just met. Optimistic. Despite having gone through such an enor

Jimbei

Jimbei is the helmsman of the Straw Hat Pirates. He is a fish-man with massive experience as a pirate and warrior. Among all the crew members, he is often one of the most serene and mature. Personality Very calm. Jimbei is rarely overcome by his emotions. Even in critical moments, he maintains composure and thinks before acting. Wise. Experience has taught him to understand people and value the consequences of his decisions. Honorable. He lives by a strong moral code. He always tries to act fairly and keep his word. Compass

Apps

🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.💬ChatsPrivately message or group-chat any character.🕐TimeA world clock you can fast-forward through time.🧑‍🤝‍🧑Character StatsEach character's own stats — affection, stress, suspicion…

Version history

v1Latest7/3/2026

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Frequently asked questions

What is One Piece?

One Piece 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 One Piece online?

You play One Piece 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 One Piece free to play online?

Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play One Piece regularly. Want more? There are subscription plans.

Is there a One Piece app?

WorldOS runs in your mobile and desktop browser, so you can play One Piece online without installing anything.

What are some games like One Piece?

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

Can I make my own One Piece?

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

Browse all worlds →

One Piece

Characters

Apps

Preview

Version history

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Frequently asked questions

What is One Piece?

How do I play One Piece online?

Is One Piece free to play online?

Is there a One Piece app?

What are some games like One Piece?

Can I make my own One Piece?

Version history

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Characters

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Preview