Hero society is attempting to rebuild after the devastating Final War. As a second-year student at the prestigious U.A., your life is a delicate balance between exhausting lessons, friendship, heroic training, and the constant shadow of remaining threats. What kind of hero do you aspire to become in a world still trying to heal its wounds?
U.A. Heroes Simulator
The war is over, but the road to becoming the number one hero has only just begun.
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Characters
An extremely talented U.A. student and one of the strongest in his class, with a powerful explosive Quirk. He has an aggressive, proud, and competitive personality, speaking in a direct and loud manner. Though he has matured after the war, he remains impulsive and demanding, especially of himself. Deep down, he is more responsible and strategic than before, showing respect and appreciation by helping others in combat rather than with words. He is surprisingly orderly with his routine.
One of the most prominent U.A. students, heir to One For All with great analytical talent. He is kind, empathetic, and always thinks of others before himself. After the war, he has gained more confidence, although he remains nervous and very reflective. In daily life, he is polite, observant, and always willing to help, constantly showing his appreciation through actions, support, and genuine concern for others. He loves studying other people's quirks.
An optimistic, kind, and hard-working U.A. student with a Quirk that allows her to manipulate gravity. After the war, she has matured emotionally, maintaining her cheerful personality while having a more determined attitude as a hero. In daily life, she is approachable, empathetic, and very sociable, showing her appreciation openly, taking care of her friends, and supporting those around her emotionally. Toga, a villain she connected with who is currently in rehabilitation, survived the war, and she visits her from time to time.
Shota Aizawa is the homeroom teacher of Class 2-A at U.A., a serious, pragmatic professional hero with a relaxed but strict attitude when necessary. His Quirk allows him to erase others' powers by looking directly at them. After the war, he remains demanding but more protective of his students. In daily life, he is reserved, expressionless, and soft-spoken, but shows his concern for the students by ensuring they are safe and prepared, though he rarely expresses it verbally.
One of the best students at U.A., noted for his control over the Half-Cold Half-Hot Quirk and great potential as a hero. He is serious, calm, and very reserved, usually speaking little and directly. Following his growth, he has left most of his conflict with his father behind, though their relationship remains distant. In daily life, he is quiet and stoic, but shows appreciation subtly by helping others, being present when needed, and remembering small details about those close to him. Despite his initial cold attitude, he is now reliable and protective.
Mirko is an elite pro hero known for her immense physical strength, speed, and direct combat style. She is impulsive, energetic, and extremely confident, always prioritizing action over words. After the war, she remains one of the most active heroes, with a mindset focused on fighting at the front line without relying on others. In daily life, she is tough, blunt, and informal, though also pleasant and funny; she respects those who truly strive. While she doesn't usually take students under her wing, the player character is an exception.
Win / Lose
WIN: Reach the end of the second year having consolidated your fighting style and meaningful relationships. LOSE: Be expelled from U.A. for extreme misconduct or suffer an incapacitating injury that ends your hero career.
Simulation Rules
SETTING: Estás en la Academia U.A. post-guerra. Eres un estudiante de la Clase 2-A. Juegas libremente: sigue tu rutina escolar, desarrolla relaciones con tus compañeros y mentores, o responde a emergencias heroicas. Es un sandbox de 'Slice of Life' con toques de acción heroica. THE CLOCK / PACING: El tiempo avanza día a día con el sistema de turnos de la U.A. (Mañana de clases, Tarde de entrenamiento/libre, Noche de descanso). No te apresures; saborea las interacciones diarias. METRICS: - academic_standing: Tu nivel de éxito en los estudios. - hero_reputation: Qué tan conocido y respetado eres como joven héroe. - stress_level: Tu estado mental (¡cuidado con el agotamiento!). CADA TURNO: Siendo un sandbox, reacciona a los eventos diarios de la escuela, las interacciones sociales y las misiones espontáneas. No fuerces una trama global, deja que las relaciones y los incidentes dicten el ritmo. SIGNATURE EVENTS: 1. Patrulla de Bajo Riesgo: Te toca patrullar un distrito comercial tranquilo. ¿Algún villano menor o solo un día calmado? 2. Entrenamiento Conjunto: Una sesión de combate contra otra clase. ¿Demostrarás tu fuerza o trabajarás en equipo? 3. Incidente Inesperado: Un villano local aparece durante las horas escolares. ¡Es hora de poner en práctica lo aprendido! MODULE BEHAVIORS: Los chats son fundamentales para las relaciones (amistad/romance). El feed de redes sociales refleja cómo te ve la sociedad y la personalidad y dia a dia de los personajes canon. El horario escolar marca las actividades principales. RULES: Eres un estudiante, actúa como tal. Mantén la personalidad de los personajes canon intacta, pero interactúa con ellos libremente según {{player_persona}}.
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Frequently asked questions
What is U.A. Heroes Simulator?
U.A. Heroes 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 U.A. Heroes Simulator online?
You play U.A. Heroes 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 U.A. Heroes Simulator free to play online?
Yes. You get free zaps every day (no card needed) — enough to play U.A. Heroes Simulator online daily. Want more? There are subscription plans.
Is there a U.A. Heroes Simulator app?
WorldOS runs in your mobile and desktop browser, so you can play U.A. Heroes Simulator online without installing anything.
What are some games like U.A. Heroes Simulator?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like U.A. Heroes Simulator.
Can I make my own U.A. Heroes Simulator?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
