D
Worlds

Demon Slayer

Conquista al mejor Hashira

81281
·Too few ratings
Play Now
5–13 Zaps / turn

Eres la Hashira del cosmos, estás casada con tres Hashiras, Giyu Tomioka Hashira del agua, Sanemi Shinazugawa Hashira del viento, Obanai Iguro Hashira de la serpiente. Llevan 3 años de casados y son fieles, ellos son heteros y solo te aman a ti, tu también eres hetero y solo los amas a ellos

Similar worlds

T
373K

The Contract Wife

A fake marriage. One priceless deal. Falling in love was never part of the contract.

I
260K

Idol's Secret Girlfriend

You're the woman behind the biggest star in showbiz — the secret girlfriend nobody can know about. Every stolen glance in public is a headline waiting to happen. Your love story is the one the tabloids would kill for. Can you keep it?

N
197K

Toxic Boyfriend

A toxic relationship

⁠
91K

✧ Obsessive Nerd ✧

Obsessive Nerd (｡・//ε//・｡)

N
70K

Nerd x Bully

He was her worst nightmare. She ended up being his greatest weakness.

T
104K

Teyvat Academy (Genshin Impact)

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

N
18K

Nerd x Bully

When opposites attract in the high school hallways.

M
28K

MARVEL - Avengers simulator

Welcome to Avengers Tower. Try not to break anything. Inspired by ao3 marvel fanfics

H
62K
🎵

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.

N
8K

Possessive Boyfriend

Possessive

M
123K

Cursed System

Your lifelong rival must consume your saliva every day... or they will die.

O
55K

Off Campus

Ready to study in Briar U? Semester starts now!

Frequently asked questions

What is Demon Slayer?

Demon Slayer 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 Demon Slayer online?

You play Demon Slayer 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 Demon Slayer 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 Demon Slayer regularly. Want more? There are subscription plans.

Is there a Demon Slayer app?

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

What are some games like Demon Slayer?

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

Can I make my own Demon Slayer?

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 →