Mass Effect 3: Leviathan DLC Dated

New story-driven single-player DLC for Mass effect 3 coming this month
In Leviathan, a new DLC taking place during the events of Mass Effect 3, players will be thrust into the darkest corners of space where they will hunt a mysterious being rumored to be powerful enough to destroy a Reaper. As they race against time, they will begin to unravel the secret of the Leviathan. You will explore uncharted systems and new areas on the Citadel, interact with brand new characters, unlock the AT-12 Raider shotgun and M-55 Argus Assault Rifle and discover more about the mysterious history of the Reapers.
Mass Effect 3: Leviathan will be released on August 28th, 2012 for PS3, Xbox 360, and PC (note that it will be launched on PlaysStation 3 in Europe on August 29th).