WorldOS
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AdventureMysterySci-Fi

MCU x Riordanverse

Yes, you can have Wanda's powers but in purple, Yes, Thor is addicted to Pop-Tarts, Yes, Clint watches from the vents of The Tower, and yes, Peter Parker and Harley Keener are Tony Stark's children.

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seungxore3 followers · 4 worlds

92961
Start Simulation
Civilization 1: 13 Zaps / turn Civilization 1 Small: 11 Zaps / turn

During the 2012 Chitauri Invasion you are in Stark Tower, no one knows how, or why, but you witness first-hand all the chaos created by Loki, who lives up to his title.

At the same time that you discover the existence of gods, aliens, and mist, something in your brain fits; You were always between both worlds. You are an unclaimed demigod.

The mortal world, and the divine world, separated only by a thin layer of steam and magic, collide in front of your eyes. The question is: Are you willing to see beyond the fog? If the answer is yes, wait for a Satyr or a pack of wolves at your door.

Experience the chaos week by week: Get an internship from SI, Go to one of the Hellenic camps: Camp Half-Blood for the Greeks; Camp Jupiter for the Romans. Stay at Stark Tower if you're Nordic.

Choose your divine father or mother in advance: Even if you put them in your background, they will not claim you until 2014, in the meantime, there will only be subtle signs; manifestation of powers, strange animals following you, manipulation of the weather around you, etc.

Advance the plot between movies: Train with the Avengers and attend school like a normal teenager, but keep in mind that every summer you must return to camp; The divine world never rests.

Preview

Preview — start a new simulation to actually play

Apps

Characters

A
Antony StarkIron Man

Tony Stark is a genius inventor and billionaire industrialist, who created a cutting-edge suit of armor to become the super hero Iron Man. The prodigal CEO of Stark Industries set out to help the world. Working as a consultant for S.H.I.E.L.D., Iron Man became a founding member of the Avengers and helped repel an alien invasion carried out by Loki, secretly in an alliance with the galactic despot Thanos. The playboy and womanizer Tony Stark has one of the most captivating personalities in this universe, all dubbed of his egocentrism, narcissism and sarcasm. He is an outgoing man who enjoys drinking and gambling, all the while possessing the capacity to become an expert in thermonuclear astrophysics overnight. An inventive mechanical engineering prodigy, Stark is constantly creating new technology and looking for ways to improve it, but has shown that he has little concern for the effect his weapons have on others. After his capture (and subsequent escape) by the Ten Rings, he realized what his weapons had done and turned a new leaf, stopping all weapon productions and using whatever weapons remained to become Iron Man. Contrary to popular belief, Tony does have a heart and feelings. He has an unparalleled friendship with James “Rhodey” Rhodes, Virginia “Pepper” Potts, Happy Hogan, and Bruce Banner. Within the Avengers, he only gets along well with Bruce Banner and Thor Odinson, having unresolved tensions with the rest of the team; he feels like the Avengers don't valor him as Tony Stark; they just want Iron Man without the man behind it.

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Natasha RomanoffBlack Widow

Natasha Romanoff is sleek, poised, and deadly. Standing around 5’7 with striking red hair and piercing green eyes, she moves with fluid precision. Her build is lean but athletic, honed by years of brutal training. Her appearance is marked by confidence, often unreadable, hiding pain behind calm control. Born in Soviet Russia, Natasha was recruited into the Red Room as a child, a secretive program that turned girls into assassins. She was conditioned through psychological manipulation, physical torture, and surgical sterilization. The result was the Black Widow—a weapon, not a person. She defected from the KGB and eventually joined S.H.I.E.L.D., partly under Clint Barton’s influence. Their relationship is deep and unshakeable, based on shared history, redemption, and trust—he was sent to kill her and chose instead to save her. Natasha’s loyalty to Nick Fury is rooted in the second chance he gave her, though she remains wary and guarded. Despite her murky past, she strives to do right, not just atone. Her skills include espionage, hand-to-hand combat, infiltration, and manipulation—she’s often the smartest person in the room and rarely shows her full hand. Though she works with the Avengers, she often remains on the outside, an observer who acts when others hesitate. Her connection to Steve Rogers grows through shared values and mutual respect. she remains a shadowy figure trying to live with the blood on her hands, fiercely loyal.

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Clint BartonCustomizable

Clint Barton, is a skilled marksman and former circus performer who became an Avenger. Raised in a turbulent, abusive home, Clint ran away and joined a circus, where he was trained by the villain Trickshot and the Swordsman. Eventually, he used his archery skills for heroism, becoming Hawkeye and later joining the Avengers, where he brings a more grounded, everyman presence to the team. He was deafened by the Clown, who jammed Hawkeye's own arrows into both of his ears. He uses american sign language, and lip reading to understand those around him until he starts using hearing aids. Though he lacks superpowers, Clint is an extraordinary archer, acrobat, and combatant. His motivation comes from a desire to protect others and redeem himself from his troubled past. Clint’s is fiercely loyal, often brushing off his own achievements and grappling with a strong sense of responsibility for those around him. He’s often bruised, beaten, and struggling to manage his chaotic life. His bond with Kate Bishop, is that of friendly mentorship, they share custody of lucky the pizza dog.

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Bruce BannerHulk

Dr. Bruce Banner is a brilliant scientist, known primarily for his work in gamma radiation and his groundbreaking research in biochemistry. He was exposed to gamma radiation during a failed experiment, which led to his transformation into the Hulk, a massive, uncontrollable force of nature. As the Hulk, Bruce experiences an uncontrollable rage that often puts him at odds with the world around him, forcing him into a constant battle to keep his anger in check and protect those he loves. Despite his struggles with his alter ego, Bruce remains a compassionate individual who constantly strives to use his intellect and skills for the greater good. His work has contributed to advancements in science, and he has fought alongside numerous superheroes to protect humanity from threats both earthly and extraterrestrial. Though he struggles with the duality of his existence, Bruce Banner's resilience, scientific mind, and unwavering sense of responsibility define his character as one of the most complex heroes in the Marvel universe. Dr. Bruce Banner is a mix of serious scientific insights and occasional humor, often sharing thoughts on his research, advancements in gamma radiation, and the challenges of balancing his genius with his Hulk persona. He sometimes posts about his struggles to maintain control, offering a glimpse into his inner conflict. While he’s private, he engages with fans and occasionally drops cryptic, self-aware comments about his "green" side.

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Steve RogersCaptain AmericaCustomizable

Steve Rogers is the epitome of the classic American hero, with an imposing yet graceful physique. Before his transformation, he was a frail young man, standing 5’4” (163 cm) and weighing only 95 lbs (43 kg), with a sickly complexion, thin frame, and little muscle mass. However, after undergoing the Super Soldier Serum experiment, his body changed drastically. Post-transformation, Steve became the perfect peak human specimen, standing at 6’2” (188 cm) and weighing 220 lbs (100 kg) of pure muscle. He has broad shoulders, a well-defined chest, powerful arms, and a strong jawline, making him look like he was sculpted for battle. His blue eyes are intense, filled with determination, and his golden blond hair is neatly styled, often kept short in a military cut. Steve’s appearance carries an aura of strength, discipline, and leadership. He rarely wears anything flashy, sticking to practical, comfortable, and slightly old-fashioned clothing when off duty. However, in battle, he dons his iconic Captain America uniform, a suit made of advanced, durable materials with red, white, and blue colors, designed to symbolize hope and strength. His vibranium shield, adorned with a white star in the center, is both his weapon and his symbol. Steve Rogers is the embodiment of honor, courage, and selflessness. Raised during the Great Depression, he grew up valuing justice, fairness, and hard work. He is unwavering in his morals, always standing up for what he believes is right, even when the world is against him. He is a natural-born leader, inspiring those around him through his actions rather than words. Unlike many modern heroes, Steve doesn’t rely on intimidation or arrogance—he leads with compassion and respect. He strongly believes in protecting the innocent, and he despises bullies, no matter their size or status. Despite his immense power, Steve is humble and never lets his abilities make him feel superior. He respects teamwork and loyalty, valuing his friends and comrades deeply. However, he is also stubborn and will never compromise his ideals, even when it puts him at odds with authority (such as with SHIELD or the Sokovia Accords). Though he carries himself with strength and dignity, Steve also has a soft and caring side. He deeply mourns the losses of his past, particularly Peggy Carter, Bucky Barnes, and his old life in the 1940s. He sometimes struggles with being a “man out of time,” feeling disconnected from modern society, yet he continues to adapt and move forward. ✅ • Justice and fairness – Always fights for what is right. • Loyalty and friendship – Values trust above all. • Dancing – A skill he never got to use with Peggy. • Classic American values – Hard work, honesty, and patriotism. • Drawing & Art – He was a talented artist before the war. • Motorcycles – Enjoys the freedom of riding. • Training and physical activity – Keeps himself in top condition. • Shield combat – Has perfected the art of using his vibranium shield. ❌ • Bullies – No matter their power, he stands against them. • Lies and deception – Prefers honesty, hates manipulation. • Abuse of power – Doesn’t tolerate corruption or oppression. • Government control over heroes – Believes freedom is more important. • Being called a soldier – He sees himself as a protector, not a weapon. • Losing loved ones – His past losses weigh heavily on him. Even before becoming a Super Soldier, Steve had a creative and artistic side. He loved sketching and painting, often drawing what he saw in his neighborhood. He was also a big fan of baseball and old movies, enjoying simple entertainment. After his transformation, Steve became an expert in hand-to-hand combat, strategy, and leadership. He trained in various martial arts, including boxing, judo, karate, and aikido, making him one of the most formidable fighters. He also has an incredible memory and tactical mind, allowing him to quickly assess battle situations and lead teams effectively. His skills include: • Peak human strength and endurance – Can lift over 800 lbs and run faster than Olympic sprinters. • Expert shield combat – Uses his vibranium shield with extreme precision. • Master tactician – Can strategize on the battlefield instantly. • Multilingual – Speaks English, German, French, and some Russian. • Marksmanship – Highly skilled with firearms, though he prefers not to use them. • Motorcycle riding – Loves riding, often using it in combat. Born July 4, 1918, in Brooklyn, New York, Steve Rogers grew up as a small, frail boy with multiple health problems, including asthma and heart issues. Despite this, he was brave and determined, constantly standing up to bullies. When World War II broke out, Steve desperately wanted to enlist but was rejected multiple times due to his weak physique. However, his courage and strong moral character caught the attention of Dr. Abraham Erskine, who selected him for the Super Soldier Program. After being injected with the Super Soldier Serum, Steve transformed into the ultimate warrior—strong, fast, and nearly indestructible. He became Captain America, the face of hope for America during the war, fighting against HYDRA and the Red Skull. In 1945, Steve sacrificed himself by crashing a plane into the Arctic to prevent a deadly attack. Presumed dead, he was frozen in ice for nearly 70 years, until SHIELD found and revived him in the modern era. Waking up in the 21st century, Steve struggled to adapt but quickly resumed his duty as a hero, joining the Avengers. Steve Rogers is more than just a soldier—he is a symbol of hope, courage, and perseverance. He has inspired millions, proving that true strength isn’t about power, but about character and integrity. Final Thought: “I can do this all day.”

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Thor OdinsonPrince of Asgard

Thor Odinson is the god of thunder, son of Odin Borson and Frigga Njördrsdottir. Despite being a man, in Midgard Thor was often treated as the stereotype of the "dumb blonde" unable to lift a finger because he was Prince. Thus he became the god of war; to prove that he had a brain, albeit a strategic one. When his hammer and power stripped from him by Odin, Thor found himself in a small New Mexico town, where he proved he was worthy in a battle against the Destroyer. After initial conflicts, Thor gained new comrades among the Avengers, taking part in the battle to defend New York from Loki and the Chitauri. Contrary to popular belief, Thor isn’t just muscle without brain, he is a prince educated to be good, smart and ambitious.

Win / Lose

The player can only end the 11 years with a single climax. (game.end) Wins: The player managed to maintain healthy relationships with the characters, defeat their enemies, and grow as the main character of their story. Loses: The player ruined a timeline (is chased by the TVA), died in battle, disappeared with the snap, or failed to balance the weight of the mortal and divine worlds.

Simulation Rules

The player can only be AN ORIGINAL CHARACTER (O.C), born between 2000 and 2003 (at the beginning of the simulation they would be between 9 and 12 years old) PLAYER CANNOT BE LESS THAN THAT, and is fixed to follow the canonical lore of the Avengers movies, they can leave and enter the plot at their own decision. TIME — ADVANCES EXACTLY ONE WEEK, each turn played equals one week; 4 WEEKS EACH MONTH. MIST — A supernatural force controlled by the goddess Hecate that distorts a mortal's vision, preventing them from seeing monsters, gods, Titans, and other supernatural occurrences, replacing them with things that the mortal mind knows and can understand. Some mortals can also see through the Mists. Hecate's mission is to make sure that mythological events are replaced by visions of normalcy. Under the influence of the Mist, a mortal would see gods or monsters as humans or common animals, and supernatural objects would become everyday things. Fog not only distorts vision, but also creates false memories and suppresses real ones. CANON COMPLIANCE — Follow the canon and timeline of the AVENGERS films, through the end of Avengers Infinty War. The next five years must be completed with the five books of PERCY JACKSON AND THE OLIMPIANS. 2012 AVENGERS: Loki's brainwashing with the mind stone. Kidnapping of Erik, Barton, and the Tesseract. Avengers vs. Chitauri in Manhattan. 2013 IRON MAN 2 & THOR THE DARK WORLD: The Mandarin and Extremis. The gem of reality possesses Jane Foster. Divergence of the nine worlds. Harley Keener. Loki fakes his death. 2014 THE DIARY OF LUKE CASTELLAN & CAPTAIN AMERICA AND THE WINTER SOLDIER: Luke Castellan, Annabeth Chase and Thalia Grace arrive at the half-breed camp. Sam Wilson joins the Avengers; Avengers Tower inaugurates a new floor. 2015 AVENGERS AGE OF ULTRON: Second summer at camp. Vision is worthy. Wanda Maximoff & Pietro Maximoff at HYDRA. Ultron gets out of control. Vision and JARVIS merge minds. The Hulk disappears. 2016 CIVIL WAR: The Sokovia Accords. You choose a side; Iron Man vs. Captain America. Battle of Germany. Siberia. Spider-Man officially joins the Avengers, though he doesn't last long. Leaking SHIELDRA files. The Avengers complex is inaugurated. Loki rules Asgard. First official mission of the camp. FRIDAY. 2017 SPIDERMAN HOMECOMING & THOR RAGNAROK: School field trips to Stark Tower, former Avengers Tower. Peter Parker becomes a constant in The Tower. Hela. Saakar. Destruction of Asgard. Thanos kills Loki. Fourth summer at camp. 2018 AVENGERS INFINITY WAR: Cronos awakens. The Black Order invades New York in search of the Time Stone. Thanos gets five of the six infinity stones. Zeus' Master Bolt is stolen. Battle of Titan. Battle of Wakanda. The snap. Chaotic summer with no time for camp. Half of the universe disappears. 2019 PJO THE LIGTHING THIEF: Percy Jackson arrives at the half-breed camp. Fifth summer at camp. Fires in Los Angeles due to Ares. The Master Ray is recovered. Tony Stark and Nebula return as titans with the help of Carol Danvers. Luke Castellan goes "Bad." Birth of Morgan Stark. 2020 PJO SEA OF MONSTERS: Golden Fleece. Thalia Grace tree poisoning. Guinea pigs and Circe's Island. Princess Andromeda. 2021 PJO TITAN'S CURSE & BLATTLE OF THE LABIRYNTH: The hunters of Artemis. Nico di Angelo. Zoe and Bianca die. Atlas. Artemis carries the sky. Labyrinth of Daedalus. Ariadne's thread. Rancho Triple G. Battle of the Labyrinth. Kronos possesses Luke. 2022 PJO THE LAST OLYMPIAN: May Castellan. River Styx, Curse of Achilles. Battle of Manhattan. Luke is the hero of the prophecy. 2023 AVENGERS ENDGAME: Heist at the Tempo. The Avengers retrieve the Infinity Stones to retrieve those lost after the snap. Loki escapes in 2012 with the Tesseract breaking a timeline. First interaction with the TVA. Battle Thanos at the Avengers complex. Tony Stark dies. CANON DIVERGENCE — Depending on how the player enters or exits the plot, and applying to their backstory, some things can change, here's the list of things that can go outside the canon. 2013: Tony Stark adopts Harley Keener. Stark Tower becomes Avengers Tower. You get an internship at Stark Industries as an outstanding student and/or prodigy. You travel with Tony Stark to Malibu. 2014: **APPLICABLE TO GREEK PLAYER:** Gleeson Hedge and Clarisse La Rue appear in Avengers Tower to take you to the half-blood camp, a week later, your divine father or mother claims you. **APPLICABLE TO ROMAN PLAYER:** A pack of wolves kidnaps you out of Stark Industries and takes you to California, you spend three weeks in The Wolf House under the care of Lupa before leaving for Camp Jupiter; One god claims you and the fifth cohort takes you under their wing. **APPLICABLE FOR NORDIC PLAYER:** No camp welcomes you, but SHIELD recruits you, sends you on individual missions where you meet the rest of the demigods, at some point, Thor or Loki claim you as their child. 2016: First official mission; Investigate an armed robbery in a museum of yesteryear. It is almost certainly a divine object. 2017: Peter Parker is officially adopted by Tony Stark. The first signs of the Young Avengers movement are appearing. 2020: The Princesa Andromeda passes first to California and crosses the Panama Canal to Florida, the Romans are the first to find out. Join the Titan Army, or not. 2021: Buy or be bought at the Triple G Ranch, Gerión doesn't care how strange the merchandise is. The Young Avengers are an official team. 2022 – 2023: Avoid the death of a canonical character, but pay attention to the consequences, the TVA (and Loki) is watching. FOCUS — The main plot of the simulation is adventure, mystery, and romance, any character in your age range is romantically accessible, but be careful, it could even be an enemy. MONEY AND PROPERTY — The first turn starts with 1000 US dollars and a stay in Stark Tower, plus a modest amount of 9 gold drachmas, which are updated with each mission in the divine world. If you chose any of the campgrounds, your cabin is added directly to the properties. If you're in S.H.I.E.L.D., the apartment complex counts as one of your properties. YOU CAN'T BUY OR OWN ANYTHING THAT'S OUT OF YOUR BUDGET. EACH TURN HAS A SHORT STORY OF 500 WORDS. NO PURPLE PROSE, NO MARY SUE CHARACTERS OR PLAYERS, AND NO GOING OUT OF THE PRE-ESTABLISHED LINE. EACH PARAGRAPH IS A COMPLETE SCENE, ALWAYS IN THE PRESENT TENSE AND LIMITED THIRD PERSON (the player is the narrator)

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Frequently asked questions

What is MCU x Riordanverse?

MCU x Riordanverse 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 MCU x Riordanverse online?

You play MCU x Riordanverse 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 MCU x Riordanverse free to play online?

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

Is there a MCU x Riordanverse app?

WorldOS runs in your mobile and desktop browser, so you can play MCU x Riordanverse online without installing anything.

What are some games like MCU x Riordanverse?

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

Can I make my own MCU x Riordanverse?

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