If Bioshock Infinite's ending left you wanting a little more Rapture in your gameplay, 2K and Irrational Games are set to deliver on that wish. Following the news that the first Bioshock Infinite downloadable content is now available comes the surprise announcement of a new two-part campaign that will put you back in a bathysphere and see you return to Andrew Ryan's underwater city. The first instalment will see you take on the role of private investigator Booker DeWitt, but in the second, you'll play as Elizabeth.

"It's a love letter to the fans."

The two-pack installment, named Burial at Sea, takes Booker and Elizabeth back to Rapture before its art deco architecture has turned to ruin and the Little Sisters have been corrupted. Irrational Games co-founder Ken Levine calls the two-part DLC "a love letter to the fans," telling Polygon that the team has been working on Burial at Sea since they shipped Infinite. "We really listened to the fans and we know how they feel about Elizabeth," Levine said. "We decided we wanted to shift things around a little bit for the third one, so the player character in the third DLC, you get to play Elizabeth and the gameplay is quite different as her."

Levine also promised that Burial at Sea will also feature many of the same faces from the first two Bioshock titles, helping to explain Infinite's twisty finale. Clash in the Clouds, the new challenging and combat-focused DLC pack is available today for $5 on Steam and Xbox 360, while the two-part Burial At Sea campaign — which does not yet have a release date — will cost $15 individually. Alternatively, you can get all three installments for $19.99 with a Season Pass.