Guild Wars: Factions

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Two hundred years ago, the Betrayer called Shiro Tagachi transformed the lush continent of Cantha into a devastated landscape of stone forests and crystalline seas. Now, in an empire torn asunder by war, who you fight is as important as who you serve. While the Kurzicks and Luxons battle for ever-decreasing resources, an ancient and treacherous force returns to a world he nearly destroyed.
The heroes of Cantha may have finally met their match. Which side will you choose?

Guild Wars Factions™, the second stand-alone release from developer ArenaNet®, features a new world, new mechanics, and new professions.
Join the battle for the future of Cantha — an all-new Asian-inspired continent — with players from all over the world.
Experience two new professions unique to Cantha: the deadly Assassin and the powerful Ritualist.
Fight for your faction in all-new competitive missions, challenge missions, and elite missions.
Join in furious alliance battles that will redraw the borders of the Canthan continent.
Link your account to Guild Wars® (the original Prophecies™ campaign) for additional character slots and travels between the original continent of Tyria and the new realm of Cantha.