demo included cutscenes to introduce the player to Rapture, the game's tutorial section, and its first levels; the demo also included weapons, plasmids, and tonics that would otherwise be introduced later in the full title, as to give the player more of the features that would be found in the published game. The Xbox 360 demo was the fastest demo at that time to reach one million downloads on the Xbox Live service. The full game was released for these platforms on August 21, 2007. The first patch for the Xbox 360 version was released about two weeks after release to fix some of the game stability issues players had reported. The patch was found to introduce more problems to the game for some users, including occasional freezes, bad framerates, and audio-related issues, though methods to resolve these issues through the console's cache system were outlined by Irrational Games. In December 2007, a common patch was released for both the Xbox 360 and Windows version. The patch included additional content such as new Plasmids, new achievements for the Xbox 360 version, and additional graphics settings to address some of the field-of-view issues identified by players. (See below). The patch also added in an option to disable the use of Vita-Chambers, a feature requested by players to make the game more challenging, as well as an achievement to complete the game at its hardest setting without using a Vita-Chamber. Ports In an August 2007 interview, when asked about the possibility of a PlayStation 3 version of BioShock, Ken Levine had stated only that there was "no PS3 development going on" at the time; however, on May 28, 2008, 2K Games confirmed that a PlayStation 3 version of the game was in development by 2K Marin, and it was released on October 17, 2008. On July 3, 2008, 2K Games announced a partnership with Digital Extremes and said that the PlayStation 3 version is being developed by 2K Marin, 2K Boston, 2K Australia, and Digital Extremes. Jordan Thomas was the director for the PlayStation 3 version. While there were no graphical improvements to the game over the original Xbox 360 version, the PlayStation 3 version offered the widescreen option called "horizontal plus", introduced via a patch on the 360 version, while cutscene videos were of a much higher resolution than in the DVD version. Additional add-on content was also released exclusively for