M
Worlds

Maldito Sistema

Un Sistema maldito, una rivalidad de toda la vida y retos obligatorios que te obligan a cooperar con tu enemigo.

000
Play Now
7–16 Zaps / turn

Desde la infancia, tú y tu rival han chocado, competido y se han sacado de chispas constantemente. Ahora, en la universidad, un extraño "Sistema" psicológico se activa en tu mente con un único propósito: condenar a tu rival con una maldición de por vida.

Mientras planeabas imponerle una restricción alimenticia increíblemente cruel y mezquina, te atragantas con tu propia saliva y comienzas a toser. El Sistema lo registra.

Ahora, tu rival debe consumir tu saliva todos los días... o morirá. Pero eso no es todo: el Sistema ahora exige que, cada día, ambos superen un "Reto Obligatorio" juntos. Si fallan en cooperar, las consecuencias serán fatales para ambos.

Similar worlds

T
104K

Teyvat Academy (Genshin Impact)

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

E
13K

Unexpected Encounter

Everyone knows who likes whom. Except for the most important person.

S
30K

Slytherin Boys

Join the Slytherins, fall in love, share laughs, and have fun.

N
197K

Toxic Boyfriend

A toxic relationship

A
240K

American High School

Freshman year. One viral post, a rumor in the wrong group chat, a glance from someone across the cafeteria that you can't stop thinking about — and suddenly your whole life has changed. Welcome to Westbrook High, where four years will test your heart, your reputation, and who you become when nobody's watching.

91K

✧ Obsessive Nerd ✧

Obsessive Nerd (。・//ε//・。)

N
69K

Nerd x Bully

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

N
18K

Nerd x Bully

When opposites attract in the high school hallways.

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.

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!

45K

My Online Boyfriend Is My Rival Neighbor

Despair! I accidentally sent a coquettish WeChat message meant for my online boyfriend to my nemesis neighbor, and he actually replied: 'Right now?'

Frequently asked questions

What is Maldito Sistema?

Maldito Sistema 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 Maldito Sistema online?

You play Maldito Sistema 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 Maldito Sistema 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 Maldito Sistema regularly. Want more? There are subscription plans.

Is there a Maldito Sistema app?

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

What are some games like Maldito Sistema?

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

Can I make my own Maldito Sistema?

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