In BioShock 2, players return to the underwater dystopian city of Rapture as a Big Daddy, several years after the events of the highly acclaimed original. Soon, players will have the chance to make multiple return trips and in quicker succession, as 2K Games announced today that the first in a batch of downloadable content will be available for the Xbox 360, PlayStation 3, and PC this March.

The first add-on pack, titled Sinclair Solutions Test Pack, will cost $5 (MSP400) and be aimed at the game's multiplayer mode, which was developed by Dark Sector studio Digital Extremes. With the pack, players will be able to attain rank 50 in multiplayer mode, as well as play as Louie McGraff and Oscar Calraca. The Sinclair Solutions Test Pack is rounded out with 20 new trials, a third upgrade for each weapon, and five new masks.

2K Games noted that it has several more add-on packs scheduled to arrive in the next few months that will expand both the single-player and multiplayer portions of BioShock 2. Included in the packs will be additional narrative, as well as new tools and challenges that are designed to further flesh out the tragic fall of Rapture.