It was Sourcebook One.
Michael Avon Oeming, Christopher Mitten & Lamar Mathurin Join 3W/3M
It will be followed for year two by Sourcebook Two, known as [MAPS].
If [SYSTEMS] was about "how things work" in the 3W/3M universe, [MAPS] is all about where things are It serves as a comprehensive atlas of the three worlds and three moons, and[...]
