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Fanfic / Marvel Gems Universe

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The Marvel Gems Universe (or Earth-2013) is a series of crossovers between Steven Universe and Marvel Comics set within their own shared universe created by Lightyearpig. The stories included are as followed:

  • Clod on the Run (Guardians of the Galaxy crossover): The Guardians of the Galaxy are assigned by Yellow Diamond to capture a renegade Peridot residing on Earth, which is where they meet the Crystal Gems.
  • Secret Wars (two-part crossover with The Avengers)
    • Part 1: Search for the Six: When the Crystal Gems are investigated by Tony Stark under orders from S.H.I.E.L.D., they find themselves teaming up with the Avengers to save the universe from Thanos.
    • Part 2: Battleworld: After the Crystal Gems disband as a result of a heavy loss, Thanos assembles them once more to combat him on his planet known as Battleworld.
  • The Fantastic Mutants (upcoming crossover with X-Men & Fantastic Four): Professor Charles Xavier offers Steven the opportunity to train at his school. But when an alliance between Magneto & Doctor Doom is formed, the Crystal Gems make new partnerships themselves with the X-Men and the Fantastic Four.

As the title should probably tell you, all stories chronicle the Crystal Gems' adventures with various Marvel heroes as they defend Earth and the entire universe from evil.


The stories can be found on Fanfiction, DeviantArt and Tumblr.

A series of spin-offs is also planned called "Tales of Earth-2013," which so far includes....

  • Episode of Rocket: Long before the Guardians of the Galaxy were formed, Rocket Raccoon & Groot are put on trial for stealing from Blue Diamond and must find a way to escape Homeworld.

Marvel Gems contains examples of:

  • Alternate Universe: During production of Secret Wars, Word of God decided upon making the stories their own part of the wider Marvel multiverse.
  • Broad Strokes: Dialogue throughout all released stories imply that certain Marvel Cinematic Universe movies took place in this universe with changes to fit into the continuity. Examples include....
    • Thor: The Dark World: Malekith is namedropped when Thor explains the Reality Stone and possibly didn't die as he did in that film.
    • Guardians of the Galaxy Vol. 2: In the time between Clod on the Run & Search for the Six, Mantis, Nebula and Yondu all joined the Guardians of the Galaxy. Ego was also reference, but he's not Star-Lord's father this time which means Yondu was Spared by the Adaptation. It's also stated that Nebula became a fulltime member after a previous battle with Thanos.
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    • Doctor Strange (2016): Doctor Strange comments that he has personal experience with the Time Stone. The Ancient One was also confirmed to have dabbled in dark magic by him and Wong.
  • Crossover: With Steven Universe and all of the Marvel Universe.
  • Loads and Loads of Characters: Secret Wars alone plays this straight in its climax with the Crystal Gems, Avengers, Guardians of the Galaxy, the Diamonds, Loki, Starfox and the Silver Surfer coming together to fight Thanos.
  • Once per Episode: Each story features Steven meeting different Marvel superhero teams.

Clod on the Run provides examples of:

  • Alien Invasion: Armies of corrupted Gems and Chitauri lay siege to Beach City in the climax.
  • Big Bad Duumvirate: Titus and Holly Blue Agate team up to hunt down the Guardians.
  • Brick Joke: Whenever someone says "piece of cake", Drax wonders if there actually is cake. At the end of the story, he does get cake.
    • When the Guardians come across the barn in Chapter 2, they are cornered by Peridot's drones which Rocket immediately shoots down. Later in Chapter 3, he, Groot, Peridot and Lapis come across those same drones.
  • The Cameo: Thanos and Pink Diamond appear together in a flashback, along with Nebula, Korath & Corvus Glaive.
    • Damage Control also appear at the end to clean up after the final battle.
    • And of course, Stan Lee makes an appearance as a SHIELD agent.
    • In another flashback, Pip the Troll appears making a deal with Yondu.
    • During the ending, Nova appears to take away J'son of Spartax.
  • Chekhov's Gun: The black hole bomb Rocket builds out of random things around Steven's kitchen in chapter 3 is brought back in chapter 5 to take out the Chitauri.
  • Fusion Dance: Star-Lord fuses with Stevonnie to form Stevoter.
  • Heroic Sacrifice: Rocket attempts one to stop the Chitauri, but thankfully he survives.
  • Innocently Insensitive: Star-Lord convinces Lapis to attempt fusion with him, unaware of the existence of Malachite.
  • In Memoriam: Chapter 3 is dedicated to Adam West and Chapter 5 to Stan Lee's wife Joan.
  • Let's You and Him Fight: Chapter 3 begins with the Guardians fighting the Crystal Gems when they come for Peridot, only for it to be interrupted by Connie when she arrives.
  • Odd Friendship: Rocket forms one with Lapis Lazuli due to their similarly Dark and Troubled Past.
  • Punny Title: All over the place;
    • The story itself is named after "Fox on the Run".
    • The first chapter "Mrs. Blue Di" is a parody of "Mr. Blue Sky."
    • Chapter 2 is "Suffragette City"
    • Chapter 3 is "Come and Get your Love"
    • Chapter 4 is "Hooked on a Feeling"
    • Chapter 5 is "Fooled Around and Fell in Love"
  • "The Reason You Suck" Speech: In response to learning about Steven being forced to hand the corrupted Gems over to Titus & Holly Blue, Rocket snaps at him and starts ranting about how he's already met people who treated him with kindness only to backstab him later.
  • The Stinger: Two of them focus on other characters reacting to the events of the story. Thanos prepares to hunt for the Infinity Stones while Tony Stark is ordered to interrogate the Gems.
  • Shout-Out:
    • Star-Lord channels Andy Dwyer when he assigns codenames to the Guardians while they're in Beach City, complete with Rocket being called Eagle Two. When they split up, a bystander thinks he looks like Danny from Fields and Recreation.
    • Stan Lee calls Groot Deku Tree.
    • Peter likens Yondu to Han Solo and Peter Venkman.
  • Strange Minds Think Alike: Both Nick Fury and Thanos exclaim "The Homeworld rebels are still alive?!" upon seeing the Crystal Gems fight the Chitauri.
  • Villainous Breakdown: Titus becomes so fanatical about bringing the Guardians to justice that he'd allow the Chitauri to massacre Beach City.

Secret Wars provides examples of:

  • Actor Allusion: The first scene with Pearl and Doctor Strange together shows them chatting about Sherlock Holmes. It should be pretty obvious what this is referencing.
  • The Alliance: In Earth-2013, Rose Quartz convinced the Asgardians, the Inhumans, Wakanda, the Masters of the Mystic Arts, Atlantis, K'un-L'un and even Apocalypse to side with her against Homeworld during the Rebellion.
    • Steven would do the same against Thanos in the present day, only this time he has the Diamonds by his side.
  • And I'm the Queen of Sheba: When the heroes try to take the Space Stone away from a pimp on Contraxia, one of his girls says "Infinity Stones? And I'm Dazzler!"
  • Arch-Enemy: Thanos proclaims himself to be this of all Gemkind bordering on Fantastic Racism due to what happened between him and Pink Diamond, particularly the Crystal Gems and the Diamonds. Jasper also claims to be this to the Mad Titan.
  • Ascended Fanboy: Steven grew up idolizing the Avengers, especially Captain America, and now he gets to save the universe alongside them.
    • Ditto for Connie who is also a big fan of Ant-Man.
  • Big Bad: Thanos, following up on his appearances in the last story.
  • Break the Cutie: Peridot goes through a bit of a crisis thanks to MODOK telling her that she's nothing more than comic relief to the Crystal Gems.
  • Breaking the Fellowship: Part 2 begins on this with the heroes all going their seperate ways in the aftermath of Thanos's victory.
    • Lapis Lazuli journeys with Thor across the Nine Realms to find a way to stop Thanos.
    • Amethyst & Mantis join the Avengers while Pearl hangs out with Doctor Strange to monitor Thanos's rampage.
    • The Guardians help Peridot rebuild the barn after it is destroyed by the Outriders.
    • And finally, Steven, Garnet & Connie are the only members of the Crystal Gems remaining within Beach City.
  • Breaking the Fourth Wall:
  • The Cameo:
    • Pip the Troll appears again during the Knowhere sequence and apparently the Avengers have met him before.
    • Also appearing on Knowhere are Cosmo the Space-Dog and Howard the Duck.
    • Along with Blackjack O'Hare, the other characters appearing on Halfworld are Rocket's former partner Wal Rus and Ziggy Pig & Silly Seal, a pair of Funny Animal characters from Marvel's early days as Timely Comics.
    • A Majesdanian appears on Contraxia.
  • Chekhov's Gun: The Red King's warsuit is taken after he is defeated because Groot believes it could be useful. And he's right.
  • Cliffhanger: Part 1 ends on Thanos invading the Gem Homeworld, bringing the Diamonds to their knees and performing his famous Badass Fingersnap.
  • Co-Dragons: Corvus Glaive, Loki and Mephisto all serve as this to Thanos, though by the end all three of them are separated from him. The former two are killed and later brought Back from the Dead while the latter is betrayed and surprisingly helps the heroes return to Earth.
  • Composite Character: Thanos's motivations are a mix of his Stalker with a Crush on Lady Death from the comics and his Well-Intentioned Extremist goals from Avengers: Infinity War.
  • Comic Book Death: Spider-Man hangs a lampshade over this trope regarding Captain America's near-death at the end of Part 1.
  • Cuteness Proximity: Steven falls for Cosmo the Space Dog and Blackjack O'Hare.
  • Deal with the Devil: The relationship between Thanos and Death is given a dash of this as well. As revealed in "Disassembled," when Thanos tells his backstory to Steven in his dreams, he reveals that when he was cast out by his people for his idea of saving them from The End of the World as We Know It, he encountered Lady Death in a desolate realm, where she offered his help in purging half of the universe in exchange for her love.
  • Defiant to the End: Cap keeps his famous Badass Boast from The Infinity Gauntlet and Steven adds onto this by stating that Rose may not have seen beauty in Thanos.
  • Enemy Mine: Loki, Yellow & Blue Diamond are convinced to side with the heroes against Thanos.
  • Evil Counterpart: Thanos claims that he is this to Steven in the first chapter of Part 2, since they are both unbelievably powerful hybrid beings destined for greatness. But while Steven is an All-Loving Hero, Thanos is a sadistic Galactic Conqueror.
  • Everyone Has Standards: Despite Sugilite's violent nature, even she refuses to harm any of the undead Gems summoned by Mephisto. Though, that could be Garnet talking.
  • Exact Words: When Blue Diamond cautions against Thanos touching Pink Diamond's palanquin in Disassembled, he doesn't touch it. Rather, he blows it up with the Gauntlet.
  • Fantastic Racism: During the meeting at the beginning of chapter 4, Thaddeus Ross is quick to call the Gems a potential threat to the Earth.
  • Fetch Quest: The fourth chapter is appropriately titled "Hunt for the Stones" as the Crystal Gems & the Avengers try to claim the Infinity Stones before Thanos can, while also being joined by the Guardians of the Galaxy. Unfortunately their efforts are rendered meaningless when Mephisto steals the Soul Stone and is given the rest.
  • Foreshadowing: When Truman Marsh is first introduced in "The Masters of Evil", there are few hints that he is really Ultron in disguise.
    • For starters, he's literally done the exact same thing in Avengers, Assemble!, only Marsh is secretary of defense rather than a liaison to the Avengers.
    • His birthdate is July 10, 1968, the original release of Avengers #54 when Ultron first appeared as the Crimson Cowl, and he died on May 1, 2015, the release date of Avengers: Age of Ultron.
    • Marsh hails from Jacksonville, Missouri, the birthplace of Ultron's co-creator Roy Thomas.
    • And finally when President Ellis lists off the various Avengers present at Thanos's invasion of Beach City, the mention of Hank Pym, Tony Stark and Bruce Banner peaks Truman's interest. The former created Ultron in the comics while the latter two did it in the Marvel Cinematic Universe.
  • Fusion Dance: Steven once again fuses with a Marvel character, this time it's Captain America.
  • Guest-Star Party Member: Silver Surfer and Thanos's brother Starfox join forces with the heroes to stop Thanos, especially since the two have already been chasing him.
  • Heel–Face Brainwashing: The Silver Surfer was captured and brainwashed by Thanos at some point to serve him as a member of the Masters of Evil before he was freed by Garnet, Amethyst, Wasp and Winter Soldier.
  • Hypocrite: Thanos brutally calls out Pearl for continuing to devote herself to Rose long after her passing, though he should really be one to talk given his crush on Death.
  • In Memoriam: Chapter 4 is dedicated to Steve Ditko. In addition similar to Stan Lee, there's a SHIELD agent named after him that appears.
  • It's Not You, It's My Enemies: Once again, Steven is forced to prevent Connie from joining him in battle, this time in the intial fight against Thanos. It's justified as since she's a human, Thanos would've most certainly tried to kill her.
  • Monster of the Week: Across both parts.
    • Chapter 2 involves the Crystal Gems teaming up with the Avengers for the first time against Loki, Absorbing Man and Titania.
    • The chapter after that shows the Crystal Temps teaming up with a group of reserve Avengers (such as Spider-Man, Ant-Man, The Wasp, Scarlet Witch, Quicksilver, The Vision, among others) to defend Beach City from MODOK and the Wrecking Crew.
    • Chapter 4 features the Gems, Avengers and the Guardians of the Galaxy fighting Blackjack O'Hare for possession of the Time Stone.
    • Chapter 1 of Part 2 has a scene where Amethyst, as a new member of the Avengers, fights HYDRA in Times Square.
  • Old Friend: Steve and Bucky Barnes turn out to be close acquaintances with Rose Quartz during World War II.
  • Out of Focus: Chapter 3 of Part 2 doesn't feature Steven at all, instead focusing on Connie teaming up with the reserve Avengers.
  • Sadist: When Mephisto makes his proper debut in Chapter 4 of Part 1, he wastes no time in traumatizing Garnet & Pearl with phantoms of deceased Gems from the Rebellion that also nearly harmed Steven.
  • Sequel Hook: Many to set up future stories, particularly in Chapters 3 and 4 of Part 2.
  • The Stinger: Once again, there's two of them. The first features Truman Marsh visiting Absorbing Man and Titania about a proposition and the other is Steven meeting Lady Death and Deadpool in his dreams.
  • Smug Super: Thanos shows this quite a bit at the final battle of Search for the Six.

Tales of Earth-2013 provides examples of:

  • A Day in the Limelight: Each one-shot is said to center on a single character, at least for the first series. The first stars Rocket Raccoon while the second will be an Origin Story for Thanos.
  • The Cameo: Aquamarine, Topaz & Emerald all appear to capture Rocket.
    • Peridot also appears in the post credits scene to put Lylla in her cell.
  • In Memoriam: Episode of Rocket is dedicated to Stan Lee himself.
  • Heroic Sacrifice: Lylla allows herself to be captured on Homeworld so that Rocket, Groot and the Collector can escape.
  • Not So Different: Rocket believes he and Blue Diamond are this after escaping because they both lost someone important to them.
  • Prequel: Episode of Rocket is this to Clod on the Run, taking place between Ocean Gem and The Return.
  • The Stinger: As per usual. Episode of Rocket ends on Lylla meeting Lapis Lazuli in prison after taking the fall for Rocket.

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