I'd love for Light City to be accessible for all sorts of supers gaming. I also just love a good, wacky multiverse. Here's a little sample what's been discovered so far by the fringe physicists of Light City:
Earth-Alpha: The "prime" Light City universe. In my head, anyway. Heck, maybe every individual game world is its own Earth-Alpha. That's the beauty of a prime universe: It's forever malleable, ready to be retconned, revised, and updated for the present time!
Earth-Beta: The first parallel universe to be found, when Nature Man traversed the elemental planes and found his counterpart from this alternate Earth. The boom in superheroics occurred much earlier here (in the 1940s...folks with masks and powers were a huge part of the Allied victory in World War II). Some heroes, like Black Lion, are fairly similar between Earths Alpha and Beta, aside from age. Others, such as the Flame, differ enough that it's hard to even trace how they're connected. Still others have no known counterpart on the other Earth.
Earth-Gamma: An Earth where The Assembly is the premier superhero team rather than The Association. Cities don't all have the word "City" in their names. And the movies tend to be a lot better.
Earth-Theta: Here, an aged Black Lion came out of retirement in the 1980s to clean up his beloved Empire City after it had fallen deep into a crime wave. He ended up facing off against his old pal Wonder Man, who has become a tool of the American government.
Earth-Mu: A world of anthropomorphic cats. And superheroes. So, yeah, superhero cats.
Earth-Nu: This universe has many of the same figures as Earth-Alpha, but the age of heroes began in the mid-1950s. There are lots of apes, and Wonder Man is kind of a dick who spends a lot of time making his girlfriend look like an idiot. Scholars of the Multiverse aren't quite clear on whether or not this is actually the same world as Earth-Theta.
Earth-Xi: Pretty much everything on this world appears to be made out of toy bricks.
There are a lot more of them out there! (You might even say they're infinite...ba dump bump.) I'm definitely interested in knowing what sorts of parallel Earths you would want to encounter in a superhero multiverse!