2K Games has released new downloadable content for players for Bioshock on both Xbox 360 and the PC.

The new content includes new Plasmids and Tonics, achievements and interface upgrades, and is now available as free downloadable content from Xbox LIVE Marketplace, through an Xbox 360 Title Update, and as part of a PC patch.

"As one of the highest rated games of the year, we wanted to continue to connect with the fans that made BioShock such an overwhelming retail and critically-acclaimed hit", said Christoph Hartmann, President of 2K. "We are excited to offer new downloadable content that will extend and enhance the replay value of this title."

New downloadable content includes:

Four Plasmids and Gene Tonics:
- Sonic Boom: Hurls creatures and objects back with a blast of force
- EVE saver: Enables Plasmids to use less EVE
- Vending Expert: Reduces prices in the vending machines
- Machine Buster: Increases the amount of damage players deal to cameras, bots and turrets

Achievements (exclusive to Xbox 360):

- Xbox 360 players can gain 100 points for "Brass Balls," by beating BioShock on the "hard" difficulty setting without dying

In response to gamers' requests and feedback from the Cult of Rapture (www.CultofRapture.com) community forums, fans of BioShock now have a widescreen option, granting a wider horizontal field of vision, as well as additional enhancements to the game.

The Xbox 360 Title Update will be automatically applied at the game's startup when users log into Xbox LIVE.

PC owners can access both the additional content and gameplay improvements via a downloadable patch.

The game, which has won numerous awards around the world, recently awarded the Best PC Game of the Year at the Pocket-lint Gadget Awards.