What If The Multiverse Collapsed Into Warhammer 40K?

What if EVERY fictional universe crashed into Warhammer 40K at the exact same moment? The Avengers fighting alongside Space Marines. Goku powering up in the Eye of Terror. Superman arriving on Terra. The Death Star appearing over Earth. I'm talking about a complete multiverse collapse where Marvel, DC, Star Wars, Dragon Ball, Star Trek, Halo, Lord of the Rings, anime, video games - literally everything - gets thrown into the grimdark future of the 41st millennium.
In this massive deep dive, we explore what happens when infinite realities collide with the Warhammer 40K galaxy. How does the Imperium react to these new arrivals? What do the Chaos Gods do when they suddenly have access to infinite universes worth of souls and emotions? Can Superman survive in a galaxy where entire planets are considered expendable? What happens when the Tyranids try to eat Godzilla?
We cover the initial collapse, the immediate aftermath, how each faction responds, the formation of an unprecedented alliance, the assault on Chaos itself, and the complete transformation of the galaxy. This isn't just a quick "who would win" scenario - this is a full exploration of how the 40K universe would fundamentally change when faced with literally every other fictional reality at once.

This is one of the most ambitious What If scenarios ever explored in Warhammer 40K lore. If you love crossover content, deep lore analysis, or just want to see how your favorite characters would handle the grimdark future, this video is for you.

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