The Yggdraverse encompasses several different worlds and timelines. This is not an active campaign per se, but is instead a growing repository of notes from previous campaigns, which will likely become relevant in future campaigns.
Because my campaigns may be set in any of several different game systems, there will be a lot more “fluff” than “crunch” in these pages. This should also make it easier for you, the reader, to adapt these concepts and characters to whichever game system works for you. Seriously, feel free to borrow any settings or NPCs that appeal to you. Just remember these are fairly powerful NPCs, so don’t let your PCs kill off too many.