Challenge 1
Invincible Harry Potter Crossover Challenge
Lily is secretly a Viltrimite who secretly escaped the purge on Viltrum and had a one night stand with James Potter.
Rules:
Viltrimite Harry
Voldemort is Harry's first main nemesis
Harry has a half sibling through James
Optional Hogwarts
Challenge 2
Invincible Rising Shield Hero Crossover Challenge
After Oliver Greyson (Mark's half-brother) died he didn't expect to be alive or summoned to different reality altogether.
Rules:
Shield Hero Oliver
Still accused of rape
Strong Oliver
Challenge 3
Invincible Ranma ½ Crossover Challenge
During a fight with a villain in China, Mark falls into the Spring of the Drowned Girl. Now whenever he gets hit with cold water he turns into a girl. Hijinks ensures.
Rules:
Has run ins with the characters of Ranma series
Challenge 4
Invincible My Hero Academia Crossover Challenge
Midoriya is a child of Nolan and no one knows. Now his powers just came in and now he has to conquer a fear all teens most face, High School.
Rules:
All Might gives his Quirk to someone else
Powerful Midoriya
Challenge 5
Invincible Ben 10 Crossover Challenge
After the Guardians are killed, they turn to a hero who has been a hero since he was 10. Now an adult, Ben Tennyson must train the new generation to handle any threats that Earth must face.
Rules:
Drill instructor Ben
Challenge 6
Invincible The Boys Crossover Challenge
Growing up in the world of The Boys, Markus 'Mark' is disgusted by the commercialism of the Vought heroes, so when his powers come in he decides to go independent.
Rules:
Vought tries to get Mark to work for them
Homelander Invincible toxic rivalry
Omni-Man still initially loyal to Viltrumite Empire
Initially no Guardians of the Globe
Challenge 7
Invincible Warhammer 40K Crossover Challenge
In the Grimdark future, degreed by the Emperor Human and Viltrumite Empire are close allies to fight the threats that threaten them.
Rules:
Space Marines have modified their DNA with Viltrumite DNA
Space Marines only have enhanced strength and enhanced lounge capacity
Other factions can challenge both factions
Has factions from both sources
Challenge 8
Invincible Mass Effect Crossover Challenge
Once Mark becomes the new ruler of the remaining Viltrimites and peace has come to Earth. Humanity has risen to the stars and stumbled on a trap that plagued the Milky Way for countless millennia.
Rules:
Arrogant Asari (optional arrogance fades)
Has super powered humans
Strong Reapers
Challenge 9
Invincible Owl House Crossover Challenge
Luz Noceda lived with her mother Camila and is the unknown daughter of Omni-Man.
Rules:
Viltrimite powered Luz
Journey of self discovery
Luz views Manny as her real dad
Challenge 10
Invincible Lord of the Rings Crossover Challenge
Omni-Man and the heroes of the Invincible universe takes place in Middle-Earth and held the line against the forces of Evil in the world. That was until Omni-Man sided with Sauron to vanquish the forces of the armies of the free peoples, so he can weaken the planet's will to fight back. For the glory of the Viltrumite Empire.
Rules:
Mark and many of the heroes fights against Omni-Man's and Sauron's forces
Atom Eve is secretly an Elf
Challenge 11
Invincible Kim Possible Crossover Challenge
The Viltrumite Empire never found Earth so 2 Viltrimites decided to hide on the backwater planet and adopted human personas. Now over 15+ years later their daughter is the world's premier super powered teen known as Kim Possible.
Rules:
Viltrumite Kim
Stronger villains
Optional: Has characters from both sources
Challenge 12
Invincible Batman Crossover Challenge
Mark witnesses his parents murder as a young boy and he swears to make Gotham a safer place. Now as a young man, a Viltrimite powered Bat takes on the crime riddled city known as Gotham.
Rules:
Intelligent Mark
Mark takes on best traits of both sources
Challenge 13
Invincible Gears of War Crossover Challenge
After Omni-Man's true colors were revealed, Mark tried to get his life back on track, unaware of what was brewing beneath the surface. Now the Locust horde has declared war on mankind and now everyone must band together or fall to the horde.
Rules:
Have a few superpowered Locust
Mark still have issues
Challenge 14
Invincible Game of Thrones Crossover Challenge
It has been about a century since the end of the events of the Invincible and now Mark's and Samantha's daughter, Terra, has decided to help a civilization who has been stuck in the Middle Ages for millenia.
Rules:
Starts sometime before the events of the story
Terra refuses to kill
Has Political drama
Challenge 15
Invincible Harry Potter Crossover Challenge
FemHarry has a secret that she has been keeping before she started Hogwarts, she is secretly the superheroine known as Atom Eve. She has to navigate her life as both a hero and a witch without people finding out who she really is.
Rules:
FemHarry
Eventual FemHarry/Mark
Harry is still taking muggle courses
Dursleys still dislike Harry