Board Thread:Fiction Universe Discussion/@comment-47205-20160329150225/@comment-26416415-20160408235914

I agree with Wormulon, a super-spiral sounds the most interesting. For the sake of compromise, the super-spiral galaxy could have an older lenticular galaxy as a closely-orbiting satellite.

Also, I see an obvious way of combining the "set in the main fiction universe" and "set in its own setting" ideas by way of Wormulon's suggestion to place the story deep in the universe's past. We could even have a side-story about the Gigaquadrant civilizations exploring the super-spiral galaxy and discovering the billions of years old remnants of the Super-Spiral civilization(s).