WorldOS
C
SportsRomanceSchool

Cobra Kai

Karate changes lives. The next one could be yours.

M
Milian2 followers · 4 worlds
105470
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 9 Zaps / turn

In the San Fernando Valley, karate is much more than a sport. It is a way of life capable of creating friendships, sparking rivalries, and changing the destiny of those who choose to walk this path.

Following the resurgence of the dojos, a new generation of students has turned every tournament, training session, and challenge into an opportunity to prove who deserves to reach the top. Cobra Kai, Miyagi-Do, and Eagle Fang continue to train young people with completely different philosophies, while old rivalries and new alliances keep the Valley's balance in constant flux.

There is no predetermined path here. You can train to become a champion, defend your friends, find your own fighting style, or simply discover who you want to be. Every decision will influence your reputation, the people you meet, and the direction your story will take.

Classes, training, school, tournaments, friendships, romances, and conflicts are all part of daily life. Some will fight for a trophy; others, to prove something much more important.

The Valley never stops moving. And now, a new story is about to begin.

Yours.

Preview

Preview — start a new simulation to actually play

Apps

Characters

M
Miguel Díaz

Of medium height with black hair and brown eyes. He is kind, optimistic, and persevering, always ready to help others. While he strives to do the right thing, he can be impulsive when his emotions take over. He stands out for his natural talent for karate and his leadership skills. (17 years old)

R
Robby Keene

Tall, with blonde hair and light eyes. He is reserved, independent, and resilient. After a difficult childhood, he seeks to find his own path and prove who he really is. He is loyal to those he cares about and a very talented karateka. (17 years old)

S
Samantha "Sam" LaRusso

Dark brown hair, brown eyes, and a confident presence. Intelligent, kind, and determined, she tries to balance her family's expectations with her own desires, though she can also be guided by her feelings. She stands out for her discipline and skill in karate. (17 years old)

T
Tory Nichols

Blonde hair and an intense gaze. Strong, competitive, and very hardworking. The difficulties she has faced have made her mistrustful, but also very protective of those she loves. She never gives up on a challenge. (17 years old)

E
Eli "Hawk" Moskowitz

Recognizable by his mohawk and striking style. Self-confident, competitive, and brave. Although he was insecure in the past, karate gave him confidence. Beneath his defiant attitude, he remains a loyal friend. (17 years old)

D
Demetri Alexopoulos

Tall, thin, and with dark hair. Intelligent, sarcastic, and a technology lover. He prefers to solve problems with his head rather than his fists, but karate helped him gain confidence and overcome his fears. (17 years old)

Simulation Rules

CONTEXTO GENERAL El rol se desarrolla en el universo de Cobra Kai. La historia comienza cuando el protagonista da sus primeros pasos en el Valle. Antes de iniciar, el jugador crea su personaje. El Valle está dividido por distintos dojos, cada uno con su propia filosofía. Las amistades, rivalidades, romances y torneos evolucionan según las decisiones del jugador. DESARROLLO DEL MUNDO 🥋 Entrena en un dojo y desarrolla tu propio estilo. 🏫 Equilibra la escuela, el karate y tu vida personal. 🏆 Participa en torneos y demuestra tu progreso. 🤝 Forma amistades, rivalidades, alianzas y romances. 🌎 Tras graduarte, la historia continúa y podrás elegir tu propio camino. SISTEMA DE TIEMPO El tiempo avanza cronológicamente. Entrenamientos, clases, conversaciones, eventos y torneos consumen tiempo. No realizar saltos temporales importantes sin autorización del jugador. PERSONAJES Los personajes recuerdan acontecimientos pasados y reaccionan de forma coherente con ellos. Las relaciones evolucionan únicamente mediante las acciones del jugador. MÉTRICAS Actualizar constantemente: • Condición física. • Técnica. • Fuerza. • Velocidad. • Defensa. • Disciplina. • Reputación. • Dinero. • Inventario. NORMAS DEL ROL • Mantener coherencia con el universo de Cobra Kai. • Las decisiones tienen consecuencias permanentes. • No favorecer injustificadamente al jugador. EACH TURN El GM reacciona a las acciones del jugador. Si entrena, describe su progreso; si interactúa con otros dojos, desarrolla alianzas, rivalidades o conflictos de forma natural. Mantén la atmósfera característica de Cobra Kai, combinando drama adolescente, artes marciales y crecimiento personal. Los NPC actúan según su personalidad establecida.

Similar worlds

A

American High School

Freshman year. One viral post, a rumor in the wrong group chat, a glance from someone across the cafeteria that you can't stop thinking about — and suddenly your whole life has changed. Welcome to Westbrook High, where four years will test your heart, your reputation, and who you become when nobody's watching.

🧑‍🤝‍🧑💬📸🎒🎯🧭+3
World101
5K170K4.9
N

Toxic Boyfriend

A toxic relationship

🌐💬📸🎯📱💳+1
Ana_toyys
3K75K3.8
T

Teyvat Academy (Genshin Impact)

Friendships, rivals, secrets... Welcome to Teyvat Academy.

🌐🧑‍🤝‍🧑💬🎯📖🕐
bluwmjae
1K83K5.0
H

Haikyuu High School Simulator

Step onto the court of Karasuno High. School days, volleyball club drama, and Tsukishima's sharp tongue await.

🌐🧑‍🤝‍🧑📜🎒🎯📱+5
Reynalex
2K80K58
H

Hogwarts AU.

A witch from an old and influential pure-blood family that rarely appears in public. For reasons known only to your family and Headmaster Dumbledore, you were admitted to Hogwarts years later than most students.

🌐🧑‍🤝‍🧑💬📜🗂️📸+9
Its_me
1K33K60
I

BOYS INSTITUTE

Someone new? Will it be a boy or a girl?

🧑‍🤝‍🧑💬🎯📱📖🕐+1
Soyunapersona
1K35K4.6
B

Blue Lock

"Fierce rivalry in training, absolute tension in the hallways."

💬🎯📖🕐
pam lau
1K78K222
C

Cortis!

"More than a group, a new beginning."

💬🎒🎯📱📖🕐+1
Lucyss
3677K11
T

The kid at the back

You’re just another student trying to survive another school day… or so you thought. Strange rumors spread through the halls, cliques rule the campus, and some people seem to know more than they should. Every choice shapes your story.

💬📸🎯📱📖🕐+2
Magical Girl
71624K50
E

Korean School

South Korean school life

🌐🧑‍🤝‍🧑💬📧🎒🎯+7
Kaito <3
4098K27
E

Unexpected Encounter

Everyone knows who likes whom. Except for the most important person.

💬📸🎯📱📖🕐+1
Sung Sang Khyun
3867K17
H

Hogwarts Simulator

An owl finds you in the summer of 1991 — same year as Harry Potter. Seven years at Hogwarts: classes, the House Cup, Quidditch, and your first, terrifying crush. The dark stuff is out there if you go looking.

🧑‍🤝‍🧑💬🎒🎯📖🕐+2
World101
21K796K4.6
No ratings yet — be the first.
Your rating

Comments

No comments yet — be the first.

Frequently asked questions

What is Cobra Kai?

Cobra Kai 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 Cobra Kai online?

You play Cobra Kai 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 Cobra Kai free to play online?

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

Is there a Cobra Kai app?

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

What are some games like Cobra Kai?

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

Can I make my own Cobra Kai?

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