BioWare will release Mass Effect 3's single-player DLC, Leviathan, on August 28 for the PS3, Xbox 360 and PC. European PS3 users will need to wait an extra day, unfortunately – Leviathan will be available on PS3 in Europe on August 29.
Mass Effect 3's Leviathan DLC will expand the single-player campaign, tasking Shepard with discovering "the most closely guarded secret in the galaxy before the Reapers silence it forever." Leviathan is set during the Mass Effect 3campaign, prior to the controversial conclusion of Shepard's tale. EA has not yet revealed a price for Leviathan.