R
Worlds

Resident Evil 4

Autumn 2004, bioterrorism continues to threaten the world. In an isolated rural region of Spain, the Los Iluminados cult controls its inhabitants via the Las Plagas parasite, turning villages, castles, and hidden laboratories into a theater of horror, survival, and biological conspiracy.

1512K9
Play Now
7–11 Zaps / turn

Six years have passed since the disaster in Raccoon City, and bioterrorism continues to spread across the globe. In a remote rural region of Spain, a mysterious cult known as Los Iluminados controls the locals with an ancient parasite called Las Plagas, turning the isolated area into a place where any outsider is deemed an enemy. Between forgotten villages, ruined castles, hidden labs, and creatures born of biological experiments, survival depends on wit, caution, and the ability to face horrors that defy all logic.

Similar worlds

T
87K

The Walking Dead

Survive. Trust few. Fear everyone.

S
9K
🎵

Stranger Things Simulator

Uncover Hawkins' classified conspiracies, survive the Hive Mind, and travel through four eras of supernatural horror.

B
317K

BNHA

In a world where 80% of the population is born with a Quirk.

J
207K

Jujutsu Kaisen Simulator

Summer 2006. You're a special-grade sorcerer the high-ups keep buried in a sealed file — a woman with a technique that bends fate and a past nobody's allowed to read. The Hidden Inventory arc is just beginning.

D
147K
🗺️

Demon Slayer Simulator

Taishō-era Japan. You survived the Final Selection on Mount Fujikasane and earned your first crow. Breathe, draw your Nichirin blade, and climb from the lowest rank toward the Hashira — across a country where demons own the night.

M
67K
🎵

MY HERO ACADEMIA【SIMULATOR】

Enroll in U.A. High, master your unique Quirk, and leap to the top of the Pro Hero rankings.

I
45K

Idol Life ✨

The life of a K-pop idol

T
104K

Teyvat Academy (Genshin Impact)

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

J
77K

JJK

♘Jujutsu Kaisen Canon♘

H
49K
🎵

Hogwarts 1976 MARAUDERS ERA

Marauders era, 1976. Laugh in the halls, duel in the dark, and find out who you’ll become when the war begins

B
120K

BSD Canon Universe

꒰ canon universe! ꒱ BSD + USER

G
41K
🗺️

Game of Thrones Game

AC 297. A new Hand rides south and the realm holds its breath. You're nobody the songs remember — a lowborn striver or a lesser-house cousin — living one month at a time as winter and war come for the Seven Kingdoms.

Frequently asked questions

What is Resident Evil 4?

Resident Evil 4 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 Resident Evil 4 online?

You play Resident Evil 4 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 Resident Evil 4 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 Resident Evil 4 regularly. Want more? There are subscription plans.

Is there a Resident Evil 4 app?

WorldOS runs in your mobile and desktop browser, so you can play Resident Evil 4 online without installing anything.

What are some games like Resident Evil 4?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Resident Evil 4.

Can I make my own Resident Evil 4?

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