Disclaimer: Characters owned by DC Comics

When Grant Morrison wrote "The Multiversity" he left seven Earths out of the 52 up for grabs in case other writers wanted to flesh them out. Being a big fan of alternate Earth stories, I've been trying to come up with idea for all these different worlds and what they might feature. I've even been commissioning designs for my character ideas.

So here's a quick guide to the Seven Unknown Worlds.

Earth-14: This universe is now the official setting for all of the "Legends of the Dead Earth" annuals DC did in the 1990s. It was an ongoing theme where every title's annual issue took place far in the future, at a time when the planet Earth was long dead. It explored how the histories of the DC heroes could be warped and distorted after so much time passed. A couple of the annuals explicitly took place within in the main DC continuity.

ADDENDUM: I'm aware that Earth-14 was recently used and introduced as a world home to that Justice League Assassins thing, but that was such a lazy idea I've worked it into my thoughts saying that particular planet was LITERALLY Earth 14, as in the fourteenth world in this universe to call itself Earth after the original was destroyed.

Earth-24: It's a reworking of the old Earth-Twelve from the previous Multiverse, which was the Earth home to the joke characters called the Inferior 5. Now this Earth is bright and ridiculous, a comedic place full of many of DC's funny characters like:

The Inferior 5, Sugar and Spike, Angel and the Ape, 'Mazing Man, the Hero Hotline, Heckler, and the Logjam of Super-Heroes. It's also the home of Boy Chimney and Open-Window Man from the New 52's "Dial H" book.

Earth-25: This is what remained of the Wildstorm Universe after Flashpoint wrecked everything, since it was previously Earth-50. Most of its heroes were transplanted to the main DC Universe, and those left behind are struggling to repair their Earth after it was decimated by Number of the Beast.

Earth-27: My most ambitious creation out of all the Earths. Since 27 is the number 3 cubed, I turned this universe into a triple mirror reflection of Earth-3, home to the evil Crime Syndicate of America. In this universe, the Earth was split into three separate worlds by the Three-In-One, so they could each have an Earth to experiment with as they saw fit.

Earth-27A: The Tragedy Earth controlled by Cynthia of the Three-In-One. This Earth is based on "Catwoman: Guardian of Gotham," an Elseworlds that turned Catwoman into Gotham's savior by giving her Batman's origin while Batman was a psychotic villain. I expanded on that and created a swapped Justice League comprised of Catwoman, Maxima, Silver Swan, Star Sapphire, the Hunter Zolomon Zoom, Ocean Master, Despero, Deadshot, Cheshire, and Chain Lightning.

The conflict of this world is its continuity is constantly getting rebooted every decade or so when the heroes can't overcome a string of tragedies. The one person to remember everything is Cheshire's daughter, Lian Nguyen, since her deaths are always the catalyst to bring the change.

This was inspired by "Higurashi: No Naku Koro Ni."

Earth-27B: The Mystery Earth controlled by Mildred of the Three-In-One. This Earth is home to the good counterpart to the Crime Syndicate, the Justice Syndicate of America, and is home to numerous heroic counterparts to evil knock off characters. This world has been allowed to grow and includes numerous superhero teams such as the Justice Lodge, the Super-Stars, the Outcasts, the Rejects, the Elementalists, and the Vanguard of Tomorrow.

The basis of this Earth revolves around the mystery of who killed the first JLA team, the Secret Seven, as well as their archenemies the Crime Club.

This was inspired by "Umineko: No Naku Koro Ni."

Earth-27C: The Horror Earth controlled by Mordred of the Three-In-One. This world features an evil JLA called the Justice 7 as well as a team of good villains known as the Academy of Night. It's a very dark Earth, almost out of E.C. Comics, because it's not that the Academy of Night is really GOOD but Justice 7 is so much WORSE. There are other superhero teams though, such as the Clemency Men, Heroines Unlimited, the Shadow Hunters, the Sisterhood of Peace, and the Legion Kids.

The Justice 7 doesn't include evil versions of Bruce Wayne and Clark Kent, but are made up of characters who tried to steal or impersonate members of the JLA at some point. Midnight Man is Dr. Hurt, Astronaut is Cyborg Superman, Jaguar is Reverse Flash, etc.

As a rule, on this Earth the only characters that are good by default are characters who are the counterparts of children and descendants of supervillains in the main DCU. There's an entire community of super kids whom are derided as the Super-Brats.

This world was inspired by "Higanbana No Saku Yoru Ni."

Earth-28: A Supporting Cast Earth, the basis of which is the best friends and love interests are the ones who are the heroes. This world is based on an old Lois Lane story where, asking the question if she was the hero instead of Superman, was shown a world where she called herself Krypton Girl.

The line-up for this world's Justice League, the Justice Sorority of America, includes Julie Madison as Raven Woman, Lois Lane as Krypton Woman, Diana/Etta Candy as Amazing Woman, Linda Park as Jackie Swift, Alex DeWitt as Torchlight, etc.

The other teams on this world include the Justice Coven, the Muses, the Legion Academy, and the Doom Platoon.

Earth-46: Another reworking of an old Elseworlds, this world's the new home to the "Superman's Metropolis" trilogy. It was about a world inspired from German Expressionist cinema, incorporating elements from "Metropolis," "Nosferatu," "The Cabinet of Dr. Caligari," and "The Blue Angel."

Since this Earth was originally Earth-1927, I made it into Earth-46 because 19 + 27 = 46.

Earth-49: The Meta Earth, it's a world that's home to all the in-universe fictional characters and comic characters the guys in the main DCU and other Earths are fans of. This includes the Gray Ghost from "Batman: The Animated Series," the Justice Guild from "Justice League," and "Hello Megan" from "Young Justice."

The conflict on this world is there are multiple versions of the Justice League popping up because they're so popular on the main Earth, and everyone's trying to figure out where these guys are coming from.