10 GVAOT - Sins of the Past » by Smithrex221b There are things of the world that Eldians and Marley has done over the years, as no matter what price in power where they seem themselves as only being to rule nations. But sometime, even erasing the past comes at a terrible price where many years ago that comes back haunting mankind for the crimes against nature of the world. A monster called Godzilla and his rage across nations.

2 A Lizard That Hates Everything by HarmanSmith64 Eren Jaeger unleashes the Rumbling across the entire planet... which awakens Godzilla from his slumber.

3 World of Walls and Monsters by Tales of Kaijus On one faithful day, an entity from another world entered paradise. It's name: Monster X. It's intention? Unclear. But whatever it is, it is on the side of humanity and devourer of Titans. However as he oversees and guides Eren Yeager and his friends, to save humanity from the Titans, uncertainty about his motives grow.

96 Enemies of Humanity's Past » by Random Crossovers Humans had always feared the Titans, but they begin to learn that they are nothing compared to what was coming. As Humanity learned more about its past, they begin to face the aftermath of an ancient war between humans and a species that could control massive monsters. Humanity must fix its broken pieces and fight alongside the Earth's remaining monsters to save their world.

5 Von einem König zum anderen » by NovaDeer Summary is inside so sorry it's too long. Tags: King!Eren Godzilla!Eren

41 Attack on Titan: King of the Monsters » by bluewhale02 Godzilla has went through a mysterious portal that sends him back in time and gives him the ability to talk. He ends up back in the year 845 where he meets Eren Yeager, Armin Arlet and Mikasa Ackerman. Later on, he discovers that his old allies, Mothra and Rodan, have also ended up here. Now, it's up to them to save humanity, and wipe out every last titan that stands in their way.

2 ゴジラタイタン：復讐 (Godzilla X Titan: Vengeance) by TheKyratianStoryTeller Months have pass, humanity has only scratched the surface of its past. Now, a new monster has arrived, a monster both an enemy to Godzilla and humanity...

129 The Unexpected » by Hey It's That Guy Change. It is the thing that many fear more than anything. We are safe with what we are familiar with, but change is unknown and unpredictable. That same unknown is brought forth when a normal iguana goes through a phenomenal change thanks to Titan blood. One blonde boy encounters this beast, forming a bond. This bond may very well save them from Humanity's mistake.

3 ゴジラXタイタン：復活 (Godzilla X Titan: Resurrection) by TheKyratianStoryTeller While humanity begins to adjust to the new lifestyle, a new monster rises from the old world. A monster once known for his prized speed. Now" with the threat of the fight moving to Wall Maria, humanity must break up this fight of the old world beasts.

9 Attack on titan -x- Godzilla: Extinction » by Godzilla3015Films Godzilla has finally awoken after a one hundred year sleep, but now he'll see a side of the humans he'd thought he'd ever see. Will he accomplish his vengeful plot against the humans or become their savior (again)? With the titans getting stronger by the day he'll have to decide quickly.

8 Godzilla » by TheBigBadRascal A cosmic event causes creature's to awaken from hibernation and inactivity. Naturally this become's a problem to an already struggling human race who not only have to deal with giant carnivorous human-like creature's who have them on their menu. But now they must deal with giant rampaging monster's who want to go to war with one another. It sure is tough living in a giant's world.

52 Godzilla vs Titans » by toughplant09 Godzilla's back and he found Titans what happens when he finds the walls.