I feel . . . Outdone.
I've been working on an Atlantis campaign setting for over 21 years. And these guys beat me to the punch. This game is very well done and a surprise to see. Everything is well made, and can include anything you desire. Set on our own planet, Atlantis the Second Age is a campaign setting with style and panache that exceeds that found in Eberron. It is the story of Atlantis, after Plato's devastating flood (the deluge wasn't all that devastating). And players and game masters are able to visit that fabled land. From Amazons to Atlanteans, to people peopling North America, this game+setting can give you a lot o enjoyment.
Atlantis the Second Age is actually the revision of a trilogy of books based on this setting. The original game was produced by Bard Games, and came in a trilogy. Morrigan Press' work has revised and updated the material presented in the trilogy. I don't know how faithful it is, but it seems to be very good work nontheless.