Xbox BioShock Demo!

2K has announced that a demo for their "genetically enhanced" first-person shooter, BioShock, is now available on Xbox Live Marketplace.

Gamers who experience the Xbox demo will find themselves in the world of Rapture, an underwater utopia torn apart by civil war. Players will be able to experiment with weapons and plasmids, and get a sneak peek as the game's story begins to unfold.

A PC demo will also be available later this month. BioShock will be available exclusively on Xbox 36 video game and entertainment system from Microsoft and Games For Windows in North America on August 21, 2007 and in Europe beginning August 24, 2007.

So... go download the demo now.