User blog comment:DetroitSteel/Marvel and DC Based Board Game/@comment-8231491-20130417022830

Right now, the focus is mainly on the physical board game; with figurines used to represent characters. The game itself exists in it's own continuity, where the characters of Static Shock and Power Girl are in fact part of it's mainstream. Myself and friends however, have refrained from using certain; shall we say, "self-contained" universes. Most exist within DC's realm, such as Watchmen and V for Vendetta. These universes would make no sense to attempt to incorporate with the more super hero oriented and mainstream DC continuities.

Instead, we have made our character selections based on the original back story we have given to our game. It is firmly rooted and draws from events in both the mainstream Marvel (Earth-616) and DC (New Earth) continuities, while borrowing bits and pieces from universes close to it. As for the numbering, as far as I have researched, it's all random.