Welcome to the Fallen Enchantress forum!
Fallen Enchantress is Stardock's second PC game based in in the world of Elemental.
In 2010, Random House released Elemental: Destiny's Embers (at a bookstore near you). A month after that, Stardock released Elemental: War of Magic.
Originally, Fallen Enchantress was going to be an expansion pack to War of Magic but the design changes to Fallen Enchantress have been so significant that we decided it made more sense to make it into its own game hence Elemental: Fallen Enchantress (complete with its own domain www.fallenenchantress.com which will be up as its own stand alone sight this Fall).
To understand Elemental one has to know its basic history.
Age of the Magi
In the Hiergamenon, the Book of the Magic recounts the great sorcerers (Ereog, Argynn, Breon). It ends with the casting of the Forge of the Overlord which attracted the the Elas'nirand the Dred'nir.
Age of the Titans
The age of the titans is broken up into three books (Pariden, Curgen, and arguably the Book of Ezmir). If you have the limited edition of the PC game, War of Magic, then you know much about this.
The age of the Titans ends with the cataclysm, the breaking of the world.
Age of Mortals
The PC Game, War of Magic, takes place in the western continent in the world of Elemental approximately 150 years after the cataclysm. The West (known as Anthys) is a desolate but relatively tame part of the world. War of Magic concerns itself with the claiming of vital resources and the building of a great kingdom.
By contrast, Fallen Enchantress is much less desolate but a lot more dangerous. It takes place on the eastern continent and revolves around a very different set of circumstances. The Kingdoms of the West's philosophy was gain control of strategic resources and overwhelm the enemy through superior masses. By contrasts, the Empires of the East rely much more heavily on magic and intelligent construction of cities, fortresses and so forth. Part of that is that the East is much less rich with strategic resources but much richer in overall terrain (not as desolate).
Moreover, because the Titans dwelt in the East, sorcery is much more developed.
Fallen Enchantress, as a game, will be a very different experience than War of Magic as a result (not to mention it has a much bigger budget but I digress).
Destiny's Embers, the book, takes place approximately 8 centuries after the War of Magic has ended and deals with the Destiny's last attempt to thwart the unnatural interference of immortals in the world of Elemental. But that story is told elsewhere.