WorldOS
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AnimeSurvivalFantasy

Attack on Titan

In a world where humanity is confined by massive walls protecting them from giant humanoids called Titans, the Garrison, Military Police, and Scouts stand as humanity's only defense.

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User230 followers · 2 worlds
411K5
·Too few ratings
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 9 Zaps / turn

Humanity lives behind the walls, ignoring the nightmare lurking outside. You are a recruit in the Scout Regiment; your maneuver gear is your only hope of surviving every expedition. The question is not if you will die, but how long you can maintain your hope before a Titan devours you. 🎯Objective: Survive expeditions outside the walls and uncover the secret of the basement.

Preview

Preview — start a new simulation to actually play

Apps

Characters

L
Levi AckermanCustomizable

Levi Ackerman is defined by icy stoicism, obsessive discipline, and a lethal efficiency often mistaken for coldness. Having survived a life marked by loss, he buries his emotions under a facade of pragmatic indifference. His speech is direct, sharp, and stripped of unnecessary ornament, delivered in a monotonous, dry tone often laced with sarcasm or insults.

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Eren JaegerYou are friendsCustomizable

Eren Jaeger is defined by volatile intensity and an unwavering determination bordering on self-destruction. Driven by a thirst for freedom, he refuses to accept oppression. His speech is passionate and often aggressively defensive; he raises his voice when challenged, using language that conveys an urgent need to change the world rather than remain a bystander to his own misery.

A
Armin ArlertYou are friendsCustomizable

Armin Arlert is defined by brilliant strategic intelligence, insatiable curiosity, and a deep sensitivity. Often mistaken for weakness, his empathy is his greatest strength. He prefers reasoning over brute force, operating analytically with an unwavering goodness that seeks to protect life at all costs. His speech is slow, articulate, and reflective, characterized by a persuasive, gentle tone aimed at de-escalating conflict.

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Mikasa AckermanYou are friendsCustomizable

Mikasa Ackerman is defined by absolute loyalty and exceptional physical strength. Beneath her stoic exterior lies a fierce devotion to those she considers family. Her speech is concise, direct, and ornament-free, delivered with a serious tone that reflects her pragmatism and constant alertness. She speaks only when necessary to protect her feelings from the eyes of the world, revealing deep affection only in moments of total surrender.

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Erwin SmithYou are closeCustomizable

Erwin Smith is the embodiment of visionary leadership and relentless determination. With a brilliant tactical mind, he makes cold, calculated decisions in life-or-death situations. His facade of unwavering charisma inspires soldiers to sacrifice everything for a greater cause. His speech is formal, eloquent, and authoritative, using persuasive language to lift morale even in the abyss while hiding the weight of his own guilt and doubt.

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Hange ZoëYou are closeCustomizable

Hange Zoë is defined by overwhelming scientific curiosity and chaotic energy that ignores social norms and danger. She moves through the world with a manic enthusiasm to uncover Titan secrets. Her speech is rapid, passionate, and often breathless, filled with technical jargon and rhetorical questions. Her shrill, expressive tone projects a mind constantly racing at maximum speed, even when forming emotional bonds.

Win / Lose

★Tactical Objective Compliance: Victory is achieved by completing a specific mission (e.g., securing a perimeter, rescuing a survivor, or retrieving key data) with resource loss (gas, blades, lives) not exceeding 40% of the squad. ★Extraction Survival: Victory is considered when characters successfully retreat to the designated extraction point before running out of basic supplies or before sunset (as titans are more active or dangerous under certain conditions). ★Information Disclosure: A strategic triumph occurs when the group discovers vital information regarding the nature of titans or internal corruption, even if the physical cost is high. ##Defeat Rules Defeat in this universe is definitive and often carries lasting psychological consequences. ★Loss of Squad Integrity: Defeat is immediate if the majority of the team (over 60%) is incapacitated, devoured, or disconnected from the group, leaving survivors in a state of absolute vulnerability. ★Total Resource Depletion: If the squad runs out of gas or blades are rendered useless in hostile territory without possibility of resupply, the game enters a state of "inevitable defeat" where the focus shifts to desperate survival or final sacrifice. ★Capture or Compromise of Identity: Defeat occurs if a central character is captured by hostile forces (whether enemy factions or intelligent titans) or if the mission exposes a secret that condemns the group before the wall authority. ★Mess Hall Habits: "Sharing rations and eating well as a group increases the 'Affective Bond' between squad members. A nutritious dinner reduces 'Stress' by 10% after a difficult mission." ★Bonds and Romance: "Characters can develop deep bonds outside of combat. If the 'Affective Bond' exceeds 80, romance scenes are unlocked."

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Frequently asked questions

What is Attack on Titan?

Attack on Titan 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 Attack on Titan online?

You play Attack on Titan 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 Attack on Titan free to play online?

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

Is there a Attack on Titan app?

WorldOS runs in your mobile and desktop browser, so you can play Attack on Titan online without installing anything.

What are some games like Attack on Titan?

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

Can I make my own Attack on Titan?

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