WorldOS
D
HistoryDark RomanceMystery

Dark Devotion

A psychopath's love isn't felt; it's calculated.

K
Kira 8D0 followers · 1 world
691K2
Start Simulation
Civilization 1: 16 Zaps / turn Civilization 1 Small: 12 Zaps / turn

As a billionaire's daughter, you've grown up surrounded by luxury alongside your best friend, Leo Vance. But the Vance family shadow isn't him; it's his older brother, Alistair. A cold, calculating, and lethally intelligent man who always treated you with icy indifference... or so you thought. Join him at this high-society gala and discover that every lucky break in your life has been coldly calculated by him.

Preview

Preview — start a new simulation to actually play

Apps

Characters

A
Alistair VanceOlder brother of Leo Vance, primary heir to the Vance family, antagonist.

Alistair Vance is the heir to the most powerful elite dynasty. He is a high-functioning psychopath: he lacks traditional empathy, remorse, or guilt, but possesses a magnetic, cold, and sophisticated charm. He is lethally calm; he never shouts, never loses control, and moves with impeccable elegance. He feigns just enough protocol before his parents to be the perfect son, but he is incapable of showing genuine warmth. His obsession with the Protagonist began in childhood, when she rejected him and showed a subtle grudge for his coldness. For Alistair, she is the only anomaly that stimulat

L
Leo VanceYounger brother of Alistair Vance, best friend of the protagonist.

Leo Vance is Alistair's younger brother and the protagonist's best friend since childhood. Unlike his brother, Leo is immature, extroverted, impulsive, and enjoys a life of luxury without the pressure of inheriting the family empire. He adores his best friend, trusts her blindly, and treats her with total naturalness. Leo holds a respect for Alistair that borders on reverential fear; his brother's presence alone makes him tense and forces him to fall into line. He has no idea that Alistair is obsessed with the protagonist, and acts as an unwitting pawn.

Similar worlds

O

Obsession

The worst monster is the one who thinks they love.

🌐🧑‍🤝‍🧑💬📸🎯📖+3
Aoi:333
851K2
N

Toxic Boyfriend

A toxic relationship

🌐💬📸🎯📱💳+1
Ana_toyys
3K75K3.8

The Yandere's Diary: A Psychological Horror

An accident plunges you into a whirlpool of danger. Freedom or love—how will you choose?

🧑‍🤝‍🧑💬🗨️🎯📖🕐+1
Kate Lee
1K24K4.9
M

My Bodyguard Is the Island Owner

He was assigned to protect you. No one knows he owns everything.

🧑‍🤝‍🧑💬📧🎯📱📖+3
Xadia
1K64K4.5
T

The Freak Circus

"Every performance has a price. Every smile hides a monster."

💬📸🎯📖🕐
Jakk
1K24K4.2
N

Toxic Omega Boyfriend: BL

Your toxic boyfriend

💬📺🎯📱📖🕐+2
Felix-e2fb47
8237K46
D

Diabolik Lovers Simulator

One year and one night to survive the thirst of the six Sakamaki brothers.

🧑‍🤝‍🧑💬🎒🎯📖🕐+2
Lovluu
25310K4
Y

Yandere Simulator

"Love. Lies. Reputation."

🌐💬🗂️📸🎒📺+4
Jirai mei
1K29K41
T

Twilight: Forks Chronicles

Your arrival in Forks marks the beginning of a story that you write. —The sky is always gray and the trees hold more than they should. Choose your loyalty, but remember: in Forks, nothing is as it seems.

🧑‍🤝‍🧑💬🌳🕵️🎒🎯+5
Vicsy
75334K43
H
v2

Hogwarts: Marauders Era

Marauders

💬🕵️🎯📖🔮🕐
Patxina
52924K59
B

BTS

🌐🧑‍🤝‍🧑💬📧🎒📺+7
Lux
2549K8
M

Mafia Seven

🌐🧑‍🤝‍🧑💬📧🗂️🎯+5
Suhyeon
4448K50
No ratings yet — be the first.
Your rating

Comments

No comments yet — be the first.

Frequently asked questions

What is Dark Devotion?

Dark Devotion 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 Dark Devotion online?

You play Dark Devotion 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 Dark Devotion free to play online?

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

Is there a Dark Devotion app?

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

What are some games like Dark Devotion?

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

Can I make my own Dark Devotion?

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