From the introduction:
Welcome to Witch Hunter: Dark Providence, the shared-world, role playing campaign based on the Witch Hunter: The Invisible World game from Paradigm Concepts.
It is Earth 1689. Colonists have been settling the New World, nations and churches are in deep turmoil in the Old World, the Aztecs continue fending off the Spanish invaders, the Dutch control New Amsterdam, and the French have begun settling New Orleans. Tensions are growing between the white colonists and the native people of North America as more settlers land on the shores of the New World from Europe. Pirates abound in the waters of the Caribbean, and untold evils walk the Earth.