Minerva's Den BioShock 2 DLC out Aug 31

For Xbox 360 and PS3 - PC version at a later date.

2K has announced that the BioShock 2 Minerva's Den DLC, a self-contained narrative experience, will be released on August 31 for PS3 and Xbox 360 priced $9.99 and 800 MS Points, respectively.

PC gamers will have to wait until a later date.

Minerva's Den puts players in the role of an all-new character who has teamed up with Brigid Tenenbaum to unravel a dictator's stranglehold on a key district in the distinctive city under the sea.

Players will explore Rapture Central Computing, a never-before-seen district of the undersea city, and uncover the dark secrets hidden in its founder's past. Wield new high-tech weaponry and a devastating new Plasmid to defeat the threats that await in Minerva's Den: more dangerous Splicers that command the power of the elements, upgraded Security Bots that throw rockets and lightning bolts, and even a never-before-seen type of Big Daddy.

You don't need to have completed BioShock 2 to access Minerva's Den, but the new content does require BioShock 2 in order to play.

Via joystiq