From the introduction:
Only the continent of Valedan is left. In an endless age of war, heroes are needed. The people need saviours, brave souls who are willing to seek a way to crush the infinite hordes of the Deep Legion and restore peace to Erathe.
Valedan is...based on the D20 system. Modifications to the core system include a dynamic wound system to reduce combat grind, a freeform magic system allowing mages to build spells relevant to the situation, new races and classes that take your character all the way from humble beginnings to heroic icons.