BioShock Infinite
BioShock Infinite was released in March

Irrational Games has released the details of BioShock Infinite's Burial at Sea downloadable content (DLC).

The DLC is set on a New Year's Eve on 1958 on Rapture, it was when the revolution started. The DLC will be bifurcated into two where in one part players will be playing as Booker and the second they will play as Elizabeth.

The DLC lets Sander Cohen, the human trafficker back in the game. CVG reports that Booker and Elizabeth are sent to Cohen while they are on a case to find out the location of a missing girl called Sally. The DLC begins soon after the rebellion of Frank Fontaine, who is later killed.

 "We rebalanced everything to be more toward resource management and stealth which changes the way that the encounters play. It's more player-initiated. You hear enemies off in the distance. Because these are BioShock Infinite systems, tweaked to create the experience of the original BioShock, it's sort of a hybrid of the two. We had to create the environments to support that gameplay," Andres Gonzalez, lead level designer to IGN after showing a demo.

Ken Levine, creative director and co-founder of Irrational Games said "We substantially changed the awareness system from Infinite to this, so it felt more like BioShock 1. It took a fair amount of work. There were things about the AI that just worked so differently. We just bit the bullet and said, 'if we want it to feel like BioShock 1 we're going to have to make all these things happen.' If it didn't feel like Rapture, it would just feel like a coat of paint. We knew we didn't want to do that."

"Taking from both worlds and putting them together and creating a unique experience that drew from both of them in a way that players had never seen before. In creating the environments, the opportunities we had because we were doing this in the BioShock Infinite engine, we had to look at everything differently. We had to base it on the original one, but also just look at what we could do and how we could leverage all these things to their full potential," Gonzalez added.

BioShock Infinite was released in March 26 for PC, PlayStation 3 and Xbox 360.