From the dark realm of One Punch Man, the Dark King, Lord Xenophilus, isn't satisfied with just one realm and seeks to conquer another. He sends Darth Vader to infiltrate the world and gain the heroes' trust while he conspires with other leaders on how to take over. Will the heroes defeat them, or will Xenophilus claim another world?

What if the Autobots and Decipticons carried their war to a galaxy far far away? Witness what happens when the Republic and the the Confederacy of Independent Systems get involved in the Cybertronian Civil war

Megatron leads a full on scale invasion across the other rings in Hell.

The Autobots and Decepticons battle in the Helluvaverse.

after a the battle in VOTE there Naruto fell into a tear in the universe and met twelve gaint robot who gave him another chance to live a happy life and gave him twelve guardians

Summary inside

A devastating weapon drains Earth's heroes, including Saitama, Tatsumaki, and Fubuki, of their powers. As chaos unfolds, the Galactic Empire, led by Darth Vader, and the Decepticons, led by Shockwave, invade to enslave humanity. Powerless yet determined, Saitama witnesses the invasion firsthand and vows to fight back, even without his strength, as the world falls into despair.

Optimus Prime thought his life was over when he merged the All spark with Cybertron's core. But he wakes up on a world that is familiar and isn't at the same time. Now he and four others that he knows and doesn't know must unearth dark secrets and right wrongs.

Optimus Prime and Megatron, reborn as Daemon Princes of Khorne, rule Cybertron, now a hellish war planet. As Khorne’s ultimate champions, Optimus wields calculated fury while Megatron revels in raw destruction. Together, they unleash apocalyptic war, annihilating worlds in the Blood God’s name with unstoppable might and eternal wrath.

Indomina, the daughter of SI!Shockwave, somehow finds herself in an alternate Cybertron where Energon is scarce and Cogless bots exist. Encountering Orion Pax and his three friends on their quest to find the Matrix of Leadership, she decided to go with them and help out.

Tessa was the last life form on Earth, and had outlived any mercy given to her by the Eldritch God. And at death's doorstep, she is told why she cannot allow it to end.

It’s Morphin Time! Autobots Roll out!

Summary inside. Rated T and M.

It's a Challenge make a good Polygamy from This bruv.

Optimus Prime and the Autobots have found the location of the grand computer Synergy, and are now helping guard it from the Decepticons, who will do anything to get the computer to find the All-Spark

After he almost gets killed by his date, Issei, awakes a power that saves him that our being power of the primes.

In the midst of a diabolical plot made by the Decepticons, Bumblebee gets transported into the world of Tangled! Now transformed into a human with no memory of his status as an Autobot, he befriends Rapunzel on her best day ever.

Two Spartans and two Autobots with completely different pasts and seemingly different personalities find they might just be on different sides of the same coin. Fighting the Decepticons and the Covenant instills a bit more camaraderie than one would think. Wildly AU. Halo/Transformers crossover

Based/inspired from the Knightverse, the alliance of Autobots and Maximals head to Hawaii to be part of humanity's navy exercise, but when an invading alien fleet of non-Cybertronian origin appear from out of nowhere, the Transformers must work together with a small group of human survivors to thwart this threat and find out who these new aliens truly are...

In a desperate bid to win the war on Cybertron,  Megatron leads his Decepticon Army in order to retrieve the Allspark,  Optimus knowing this plan goes out to find and defend the Allspark. But when his plan  fails Megatron destroys the allspark transporting  them to Earth,  at the time of the  Battle of New York.

After wasting the battery of the phone watching... that drama series, Anne Boonchuy and the Plantars head on a mission to recharge Anne's phone; however, when they reach the mountains where the source of energy the phone needs is found, things will take a turn as they'll discover something that was hidden for almost 1000 years

During the battle of Chicago, a woman appeared. She saw the war & fought w/the Autobots & humans. After the war she is in hiding. While searching for Optimus Prime she meets Cade Yeager. The reason for why she stayed with him becomes clear when he finds a semi-truck that resembles Optimus, her sparkmate.

The Autobots have followed the Decepticons to another world called Remnant. Here, they find another race of humans, who seem to be completely different from Earth's Humans. Soon, they meet a group of young ladies, who seem to be able to help them in their fight.

Over a year after she lost Hugo, Alita has been doing her best to keep moving forward. Then she's thrown into new adventures when a warrior from another world named Optimus Prime comes and warns about an incoming threat that could destroy all of humanity. (Cybertronians in this story are human like cyborgs like Alita but with different technology) Optimus Prime x Alita

Two Optimuses meet. One is angry and hurt, the other is calm and understanding. Maybe one can help the other. After all...who better to understand your pain than another you? (A conversation between Bayverse Optimus and Prime Optimus)