The Midgard Campaign Setting
is the new campaign setting from Kobold Press, and was Wolfgang Baur's (RPG Designer) home campaign setting.
It does not come with its own set of base rules; it assumes the use of Pathfinder
or AGE. The AGE System is the Adventure Game Engine, produced by Green Ronin, and used in the Dragon AGE RPG
. (There's a free kickstart guide available at the store if you'd like to take a look. ^_^
Midgard does assume the use of those rules, but there's lots of system-neutral information in there. Tons great description and story. ^_^ (I did contribute a tiny bit to the book, but even given that I think I'm not wrong there. Great reviews so far.)