Marvel's What If...?: The Video Game

Marvel's What If...?: The Video Game (or simply What If...?: The Video Game or What If...?) is a superhero video game based off of the comic series of the same name. The game is developed by Crystal Dynamics and published by Square Enix for Xbox Series X/S and PlayStation 5. The game entirely uses cel-shading animation.

Synopsis
Uatu the Watcher tells stories of various ways the Marvel universe could have split from prime.

Gameplay
Similar to the 2020 Avengers video game, Marvel's What If...?: The Video Game is a third-person action-adventure video game which combines an original, cinematic story with single-player gameplay. The game features a unique combat system chaining attacks, dodges, abilities, skills and elements to succeed a combat phase. Also similar to Until Dawn, the game features a "butterfly effect system" in which players must make choices which may change the story.

What If... Mary Jane Watson Was Bitten By the Radioactive Spider?
This campaign explores the alternate events of Spider-Man's principles, revealing what would happen if Mary Jane Watson was bitten by the lab spider instead of Peter Parker.

Story Events, Choices and Effects

 * 1) In the event of "What will you do with the Spider-Powers?". Mary Jane's choices are: 1) To become a actress, or 2) To become a wrestler.
 * 2) If Mary Jane chooses to become a actress, she signs up for a role in a stage play, where she impresses the audience, but unknowingly upstages a jealous fellow actress.
 * 3) If Mary Jane chooses to become a wrestler, she fights a wrestler known as the Crusher as Aunt Anna gets killed by a female mugger.
 * 4) In the middle of Mary Jane's choice to be an actress, the rival actress hires someone to burn down Aunt Anna's house as her choices are to try to save her aunt or let the authorities handle it.
 * 5) In the middle of Mary Jane's choice to fight a wrestler, Mary Jane comes across the mugger who is trying to escape the police. She is given the choice to either ignore the mugger or stop her. Regardless of which choice Mary Jane makes, the mugger will still kill Aunt Anna (although it will be either out of revenge for Mary Jane's interference after escaping the police (the choice to stop the mugger), or after Aunt Anna tries to stop her by herself (the choice to ignore the mugger)).

What If... Bruce Banner Became the Sorcerer Supreme?
This campaign explores the alternate events of Bruce Banner's story, revealing what would happen if Banner became the Sorcerer Supreme instead of the Hulk.

What If... Bucky Barnes Became Captain America?
This campaign explores the alternate events of Captain America's origins, revealing what would happen if Bucky Barnes was subjected to the Super-Soldier Serum experiment instead of Steve Rogers.

Story Events, Choices and Effects

 * 1) In a event based on Bucky's presumed death during World War II and eventual transformation into the Winter Soldier in the canon media, Peggy Carter and Steve Rogers are both about to fall off a plane, but Bucky can save only one of them while the other becomes a version of the Winter Soldier, but with different results.
 * 2) If Bucky saves Peggy Carter, she decides to retire from military, living a normal life after believing that both Bucky (following the event of Captain America being frozen in the ice for decades) and Steve died.
 * 3) If Bucky saves Steve Rogers, he decides to volunteer to replace Bucky as Captain America, despite being unpowered.

What If... Kamala Khan Was a Mutant?
This campaign explores the alternate events of Kamala Khan's story in the Marvel Universe, revealing what would happen if she was a born mutant and not a Inhuman descendant.

Story Events, Choices and Effects

 * 1) At the point she becomes the host of the Phoenix Force, Kamala claims she wants to be the host of only Light Phoenix, but she must decide who is going to be the host of Dark Phoenix. Her choices are her brother Aamir or her friend Zoe; both willing to become the Dark Phoenix's host to prevent Kamala's inner destruction. Depending on her choices, the chosen host will transform into the Dark Phoenix's host, but with different results:

What If... Asgard Sided With the Kree?
This campaign explores the alternate events of Asgard itself, revealing what would happen if Odin and the Asgardian Gods sided with the world conquering Kree.

Story Events, Choices and Effects

 * 1) After both the Asgardians and Kree forces are defeated, Loki must choose which one he will lead for redemption.

What If... Tony Stark Became Star-Lord?
This campaign explores the alternate events of Star-Lord's origins, revealing what would happen if Tony Stark was abducted by aliens during childhood instead of Peter Quill, and grew up to become Star-Lord.

What If... Natasha Romanoff Became the Ghost Rider?
This campaign reveals what would happen if Natasha Romanoff was chosen by Mephisto to become the Ghost Rider.

Story Events, Choices and Effects

 * 1) In the event of Natasha making the deal with Mephisto which results in her transformation into the Ghost Rider, she must decide what she will trade her soul for. Her choices are: A) To heal Clint Barton from his incurable disease, and B) to bring her surrogate sister Yelena Belova back to life.

What If... Peter Parker Had Found -- the Hammer of Thor?
This campaign explores the alternate events of Thor's story, and reveals what would happen if Peter Parker found Mjolnir, and became worthy to possess the power of Thor.

Story Events, Choices and Effects

 * 1) Mary Jane Watson is sinking in a quicksand, and Peter / Thor has to save her, but in two different ways: A) By diving into the quicksand to save her, or B) By having Mary Jane grab a hold of Mjolnir. How Peter / Thor saves Mary Jane has two different effects: A) Mary Jane barely survives as she is hospitalized for a few days. B) Exposure to Mjolnir's mystic energies transforms Mary Jane into a variant of Lady Sif. She becomes the queen of the New Valkyries, and settles to battle alongside Peter / Thor in his future battles.

What If... Thanos Became A Hero?
This campaign explores the alternate events of Thanos's ideals, revealing what would happen if he decided to be a force of good instead of evil.

Story Events, Choices and Effects

 * 1) At the beginning of the story, Thanos's home planet gets invaded by the Black Order, as he has to make a choice to save only one of his children: Nebula and Thane. After either one of them is chosen, the other will get captured and converted into a cyborg soldier for the Black Order. The only difference is the outcome.
 * 2) Thane will kill Corvus Glaive and become the new leader of the New Black Order.
 * 3) Nebula will at first want revenge on Thanos until she is convinced by Glaive to wait until time is right.
 * 4) Following the choice to save Nebula, Thanos confronts Thane in Nebula's defense, and is given the choice to either fight him to death, or to save him:
 * 5) If he chooses to fight his son to death, Thanos will end up killing Thane, but will carry out regret for his life.
 * 6) If he chooses to fight to save Thane, Thanos will defeat him in combat, but will spare him, convincing him that despite not being able to save him before, Thanos can still save him now.
 * 7) Following the choice to save Thane, TBD

What If... Hydra Created the Avengers?
This campaign explores the alternate events of the Avengers' origins, revealing what would happen if they were assembled by Hydra.

For All Time. Always. (The Last Story)
Unlocked after all campaigns are completed. The featured heroes from the parallel dimensions come together when Kang the Conqueror invades their realities for the purpose of gathering an army to conquer the mainstream universe and revert its timeline.
 * 1) Unlike all other main stories, this one does not have moments when player must decide what happens next, although various choices made throughout the game would affect the story.

Main/Playable Characters

 * Mary Jane Watson/Red Spider (voiced by Erica Lindbeck) - A version of Mary Jane Watson who is bitten by a radioactive spider instead of Peter Parker.
 * Peter Parker/Thor (voiced by Roger Craig Smith) - A version of Peter Parker who becomes worthy to wield Mjolnir, and possess the power of Thor.
 * Bruce Banner/The Sorcerer Supreme (voiced by Yuri Lowenthal) - A version of Bruce Banner who becomes the Sorcerer Supreme instead of becoming the Hulk.
 * Bucky Barnes/Captain America (voiced by Matthew Mercer) - A version of Bucky Barnes who is subjected to the Super Soldier Serum and becomes Captain America instead of Steve Rogers.
 * Kamala Khan/Phoenix (voiced by Sandra Saad) - A version of Kamala Khan who is a born Mutant instead of a Inhuman descendant. She is also the host of the Phoenix Force.
 * Natasha Romanoff/Ghost Rider (voiced by Laura Bailey) - A version of Natasha Romanoff who (initially the superspy known as the Black Widow) became the Ghost Rider.
 * Tony Stark/Star-Lord (voiced by Jason Spisak) - A version of Tony Stark who is abducted by aliens during childhood, and grows up becoming Star-Lord.
 * Loki (voiced by Max Mittelman) - A version of Loki Laufeyson who rebelled against Asgard when they made a willing alliance with the Kree Empire.
 * Thanos (voiced by Michael Dorn) - A more sympathetic, heroic version of Thanos.
 * Clint Barton/Hawkeye (voiced by Troy Baker) - A version of Hawkeye who was a former member of Hydra's Avengers until he defected and decided to take them all down.

Supporting Characters

 * Uatu the Watcher (voiced by Keith Silverstein) - A member of the alien Watcher race who observes the multiverse. He is the narrator of the featured stories in the game, and never interacts with the characters in them.

What If... Mary Jane Watson Was Bitten by the Radioactive Spider?

 * Peter Parker (voiced by Roger Craig Smith) - TBD

What If... Bruce Banner Became the Sorcerer Supreme?

 * The Ancient One (voiced by TBD) - TBD

What If... Bucky Barnes Became Captain America?

 * Peggy Carter (voiced by Olivia d'Abo) -
 * Steve Rogers (voiced by Gideon Emery) -

What If... Tony Stark Became Star-Lord?

 * Yondu Udonta (voiced by William Salyers) -

What If... Peter Parker Had Found -- the Hammer of Thor?

 * Mary Jane Watson/Lady Sif (voiced by Erica Lindbeck) - Peter Parker's love interest, and a variant of Mary Jane from the dimension where Peter becomes Thor. Depending on player's choice (if she is saved by grabbing a hold of Mjolnir), she will become a variant of Lady Sif, the queen of the Valkyries of Asgard.

What If... Thanos Became A Hero?

 * Thane (voiced by Robbie Daymond)
 * Nebula (voiced by Erica Luttrell)

Antagonists

 * Kang the Conqueror (voiced by Jeffrey Combs) - TBD

What If... Mary Jane Watson Was Bitten by the Radioactive Spider?

 * Felicia Hardy/Goblin Queen (voiced by Vanessa Marshall) -
 * Lorina Dodson/White Rabbit (voiced by TBD)

What If... Bucky Barnes Became Captain America?

 * Baron Helmut Zemo (voiced by Robin Atkin Downes, David Kaye, TBD)
 * Steve Rogers or Peggy Carter/Winter Soldier (voiced by Gideon Emery or Olivia d'Abo)

What If... Asgard Sided With the Kree?

 * Asgard-Kree Alliance
 * Odin (voiced by TBD) -
 * Thor Odinson
 * Lady Sif
 * Yon-Rogg (voiced by TBD) -

What If... Tony Stark Became Star-Lord?

 * Taneleer Tivan the Collector (voiced by TBD)

What If... Natasha Romanoff Became the Ghost Rider?

 * Mephisto (voiced by Mark Hamill) -

What If... Peter Parker Had Found -- the Hammer of Thor?

 * Norman Osborn/Loki (voiced by Robin Atkin Downes)

What If... Thanos Became A Hero?

 * The Black Order
 * Corvus Glaive (voiced by TBD)
 * Thane or Nebula/The Dark Kin

What If... Hydra Created the Avengers?

 * The Avengers
 * John Walker/Captain Hydra (voiced by TBD) -
 * Yelena Belova/Black Widow (voiced by TBD) -
 * Justin Hammer/Crimson Dynamo (voiced by TBD) -
 * Ragnarok - A android clone of Thor.
 * Karla Soren/Moonstone - A Russian mad scientist, and counterpart of Captain Marvel (visually based on Danvers's form in the The Last Avenger storyline).
 * Thaddeus Ross/Red Hulk (voiced by TBD) -