Its Doug Anderson's baby.
http://northerncrownrpg.com/
It was once a fan based web site dealing with a what-if alternative New World Setting. Atlas Games picked it up and are producing two books.
From the product pages:
Visit Northern Crown with the New World Adventures campaign book, which details the cultures, classes, combat techniques, equipment, spells, psionic knacks, and invention creation rules that will get players started.
...Explore the setting with the Gazetteer, which delves deep into the lands of Northern Crown with descriptions of the places, people, monsters, natural hazards, magic items, and inventions that will flesh out your campaign. From intrigue and rumors, to information on secret societies, the Gazetteer takes you into the heart of Northern Crown. Then look for Northern Crown: New World Adventures and Nyambe: African Adventures to expand the horizons of your game world even further!