2K Games has announced that BioShock has gone gold and will be available in North America on October 21st and internationally on October 17th. Also, players will be able to download a free playable demo on October 2nd from the Playstation Network.

From the press release:

Developed by 2K Marin, 2K Boston, 2K Australia and Digital Extremes, BioShock for the PLAYSTATION 3 system contains all-new content that augments and extends the experience in exciting ways. BioShock for the PLAYSTATION 3 system contains new features such as the inclusion of the Survivor difficulty mode, Trophy support and the addition of all-new Add-On Game Content that will be available for download shortly after launch. Pricing and availability for Add-On Game Content will be specified at a later date. 

BioShock is a narrative-driven action experience that allows players to do the impossible as they journey through an amazing, immersive and terrifying world. Caught between powerful forces and hunted down by genetically mutated citizens, the player will come to grips with the mysterious and fascinating world of Rapture, a distinct Art Deco underwater utopia gone mad. BioShock not only challenges players’ capacity to adapt and survive, but brings to question their values and relationships with the inhabitants of Rapture. With smart and adaptive AI, no encounter ever plays out the same way twice, while numerous customization options provide gamers with an experience that adapts to their playing style.