Remember back in August when 2K Games (e.g. Take-Two) said that the PS3 version of critics' choice BioShock would 'extend the gaming experience'? Well, on November 20th you'll be able to see how the exclusive DLC extend it even more. Well, you will if you live in the USA and have $9.99 (£4).

We're told that the DLC consists of "three unique Challenge Rooms that take place outside of the main storyline..."

"...each of the new Challenge Rooms offers new Trophies that can be earned through smart thinking and resourceful playing."

The included rooms are:

A Shocking Turn of Events – A Little Sister is trapped atop a Ferris wheel in an undisclosed location in Rapture. Using only the tools and environment around them, players must use their wits to create electricity to power the Ferris wheel and bring the Little Sister to safety.

The I in Team – Using limited resources, and an even more limited arsenal, players must negotiate traps and find a way to defeat a Big Daddy using their wits instead of raw firepower.

Worlds of Hurt – Step up and take on the most grueling challenge offered in the world of Rapture. Players must battle through eight rooms of Big Daddies, Splicers and the worst that Rapture has to offer. Accumulate Adam, build an arsenal of Plasmids, Tonics and Weaponry, and fight through to rescue the Little Sister.