Crussaria RPG is a free roam game where you can explore, do quests, kill monsters and other players in the battle to the top. You can follow the menu and ya-da-ya-da-ya-da there is a pretty straightforward way of playing it.
Battle: Crussaria RPG is loosely based off of the actual design of the Crussaria universe Cannon.
A link would be handy, as it isn't entirely evident as to where it is located, atleast not on any of the forum pages.