L
Worlds

The 5th Wave

42461
Play Now
6–13 Zaps / turn

The Campo Haven hangar smelled of metal, sweat, and a restrained fear we were all trying to hide. They lined us up in a straight row, our worn boots perfectly aligned on the concrete floor. We were the new Squad 53—or what was left of our humanity stuffed into military uniforms that were a size too large.

"Attention!" the instructor’s voice boomed, but my eyes had already drifted to the boy walking in front of us.

His face was hardened, carrying the weary look of someone who had seen the end of the world, and a scar I didn't remember. But the structure of his jaw and the way he stood were unmistakable. It was Ben Parish. The same Ben I was in love with back in high school, the boy with the bright smile who used to leave notes in my locker before the waves wiped the whole planet out. Now, he called himself "Zombie."

When his dark eyes met mine, time stopped for a millisecond. I saw the flash of recognition in his pupils, the contained surprise that threatened to break his relentless soldier facade. But it lasted only a heartbeat.

Ben shifted his gaze to the recruit next to me, cleared his throat, and continued the roll call as if I were a complete stranger.

I understood the message immediately. In this new world, the past was a weakness, an easy target for The Others. If we wanted to survive, we had to be perfect strangers.

"From today on, you're mine," Zombie said with a firm voice, turning his back on us. "Welcome to Squad 53. Try not to die in your first week."

Beside me, a cold-eyed girl named Ringer watched me out of the corner of her eye, analyzing me. I didn't know how many missions awaited us out there or if we would make it back alive, but as I adjusted my rifle strap, I knew that keeping the secret of who we were before the arrival would be the hardest mission of all. Especially now, when fate was about to cross our paths with a girl named Cassie who would change everything.

Similar worlds

D
18K
🗺️

DC Universe

An infinite Multiverse. Countless Earths. Every decision can change the fate of a reality.

T
16K

The Amazing Digital Circus

N
15K

Naruto Shippuden

Awaken your ninja way in the era of the Akatsuki and the Great Nations.

A
10K

Avengers

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.

T
87K

The Walking Dead

Survive. Trust few. Fear everyone.

O
30K

One Piece

One man's ambition sparked the Great Pirate Era, but it will be the will of a rubber boy and his crew that brings the world order to its knees; an epic of freedom, unbreakable bonds, and forbidden mysteries where a group of outcasts defies kings, emperors, and gods.

S
41K

Attack on Titan

S
9K
🎵

Stranger Things Simulator

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

N
31K

Naruto Simulator

Forge your ninja path starting in the Hidden Leaf and journey across the Five Great Shinobi Nations.

T
21K

Task Force 141

The New Recruit

M
37K

My Hero Academia — Canon RPG

Enter the world of My Hero Academia as it appears in the manga and anime. Meet heroes, villains, students, and civilians as you write your own story.

Frequently asked questions

What is The 5th Wave?

The 5th Wave 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 The 5th Wave online?

You play The 5th Wave 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 The 5th Wave 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 The 5th Wave regularly. Want more? There are subscription plans.

Is there a The 5th Wave app?

WorldOS runs in your mobile and desktop browser, so you can play The 5th Wave online without installing anything.

What are some games like The 5th Wave?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like The 5th Wave.

Can I make my own The 5th Wave?

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