- Primary Subject: Doctor Doom's main motivation in Avengers: Doomsday
- Key Update: A viral MCU fan theory suggests Doctor Doom is hunting down the Avengers and Mutants because their timeline-altering shenanigans triggered a multiversal incursion that destroyed his universe and family.
- Status: Unconfirmed theory
- Last Verified: August 20, 2026
- Quick Answer: Fans speculate Doctor Doom targets the Avengers and Mutants after multiversal time travel caused an incursion that wiped out his home world and family.
Before Robert Downey Jr.'s Doctor Doom gets unleashed in Avengers: Doomsday, fans are frantically trying to figure out what drives this tragic new villain.
Rather than framing Victor von Doom as a tyrant hungry for power, which many expected, a compelling fan theory suggests his multiversal crusade is much more personal. Driven by unspeakable grief, Doom's upcoming war against Earth's Mightiest Heroes and the X-Men might be a direct response to the heroes' reckless tampering with time and space.
Why Doctor Doom Is Targeting the Avengers and the Mutants in Avengers: Doomsday
It all began when the Avengers first discovered a loophole: they could potentially save the universe from Thanos's snap by going back in time to retrieve the Infinity Stones and stop him once and for all.
The problem is that their little Time Heist in Avengers: Endgame wasn't just to retrieve the six stones. Steve Rogers remains the prominent example, as he chose to stay in the past and grow old with Peggy Carter, which, as revealed by the TVA, created branching realities.
Fan theories believe that these timeline anomalies triggered a catastrophic incursion that collapsed Doom's universe, killed his family, and potentially affected other unknown parts of alternate realities.
In Doom's eyes, heroes like the Avengers, Loki, and reality-hopping Mutants are living "stolen lives" at the expense of his fallen world, turning his multiversal hunt into a mission of vengeance.
The Mutants from the original X-Men cast, who plan to work alongside Earth-616's heroes, are not safe from Doom's clutches.
By altering their dark future, the X-Men's timeline rewrite in Days of Future Past stands as one of the earliest and most drastic instances of reality-bending in Marvel cinema.
If that shift created an incursion that collided with Latveria, then they, too, are just as much involved in paying the ultimate price Doom came for.
Victor von Doom's Tragic Pursuit Could Spell Doom for Earth's Heroes
At the heart of Doom's unyielding rage is a tragic human motive: the desperate drive to recover what was taken from him.
Reports and teasers hint that Victor von Doom lost his family, or a beloved mother figure, when his universe collapsed. Unlike Thanos, who operated on his detached logic of snapping half of the universe into oblivion, Doom is driven by grief, vengeance, and a refusal to accept his loss.
By hunting down powerful multiversal entities, harvesting nexus energies, and hunting down power that could change their realities forever, Doom isn't only looking to conquer reality, but to tear down the Multiverse and rebuild it in his image, all while resurrecting his lost loved ones in the process.
In his eyes, his personal vendetta makes Doom the most dangerous threat Earth's Mightiest Heroes will ever face, as he will gladly burn down every surviving timeline just to rebuild his own home.
For now, Avengers: Doomsday is slated to premiere on December 18, 2026. Stay tuned!
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