There are a lot of Marvel Earths. You see, Marvel designates its multiple realities or universes by labeling them as different "Earths." Marvel Comics has been around in some form or fashion for more than 80 years now; in that time, hundreds of different Marvel Earths have shown up in various comics over numerous decades. A list cataloging them all would be a massive undertaking; therefore, this list is a mere compilation of the coolest and most essential of the Marvel Earths.
It should also be mentioned that the Marvel Multiverse changed a lot after the events of Secret Wars in 2015, and while the current state of the Multiverse is seemingly ever-changing, these have been the most significant Marvel Earths over the years. From the main continuity of Earth-616 on down to the cartoonish Earth-8311 of Spider-Ham, here are the wildest and weirdest Marvel Earths the House of Ideas has to offer.
This is the big one - the mainline continuity of Marvel Comics as a whole. Technically, Earth-616 has been around since 1939 with the introductions of both Namor the Sub-Mariner and the original Human Torch, but the main Marvel universe as we know it today didn't truly come to fruition until the 1960s when legends like Stan Lee, Jack Kirby, and Steve Ditko created some of the most famous superheroes of all time.
Most of the Marvel heroes you've come to know and love made their first appearances on Earth-616. Everyone from Spider-Man and Black Panther to Doctor Doom and Magneto made their bones in the 616. Interestingly enough, according to Dave Thorpe - the man who first created the idea of labeling the main Marvel continuity as Earth-616 - he was originally going to use "666" as the number. "It would have been too obvious to use that," Thorpe said to Bleeding Cool. "I chose 616 = 666 – 50. Why 50? A nice round number, but the school in the world's coldest town in Siberia closes when the temperature reaches -61.6 degrees Fahrenheit. It's an extreme tipping point."
Earth-1218 is the "real" world - read: our reality - where people can buy various issues of Marvel Comics. We may not be lucky enough to have superheroes in the real world, but we sure can read about them. Characters like Deadpool, She-Hulk, and Gwenpool are all seemingly aware of our reality, as well as the fact that they inhabit a comic book universe, because they have consistently broken the "fourth wall" over the years and spoken directly to the people reading their books.
Earth-1218 was officially named by Jordan D. White in the letters page of 2008's New Exiles #3, apparently naming it after his own birthday. Our universe may be the most mundane in the entirety of Marvel's multiverse, but knowing we're included at all is a fun little Easter egg nonetheless.
Have you heard about the Marvel Cinematic Universe? Of course you have; the 23 films in the franchise have grossed an astonishing $22.5 billion worldwide, introduced the word "Avenger" into the public consciousness on a massive scale, and have had every Hollywood studio that doesn't begin with the word "Marvel" playing catch-up in response.
Earth-199999 includes more than just films like Iron Man and Avengers: Infinity War. In addition to the big-screen releases, television shows like Agents of S.H.I.E.L.D. and Agent Carter, official comic book tie-ins to the movies, and "Marvel One-Shots" like The Consultant are all included under the Earth-199999 banner. With upcoming Disney+ series including The Falcon and the Winter Soldier and WandaVision joining the party in the near future, it's clear Earth-199999 isn't going away anytime soon.
If you're one of the many people who just can't seem to get enough of the ever-popular zombie sub-genre, we have a Marvel universe for you. After first appearing in a 2005 multi-issue storyline in Mark Millar and Greg Land's Ultimate Fantastic Four, Earth-2149 became a fan-favorite with a couple of Marvel Zombies limited series by the king of zombie media himself, The Walking Dead creator Robert Kirkman.
Although DC has recently jumped in the zombie game with Tom Taylor's well-received 2019 limited series DCeased, Marvel Zombies has been around more than a decade longer. If the idea of your favorite superheroes having zombified heel-turns and chomping down on innocent civilians sounds like your kind of good time, Earth-2149 is right up your alley.