IDW Publishing published a 12-issue comic book adaptation, titled Metal Gear Solid: Sons of Liberty, produced by the same creative team that worked on the comic book version of the first game.
A digital version of the comic, titled Metal Gear Solid 2: Bande Dessinée, was released on June 12, 2008 in Japan and is currently set to be released in Europe on September 26, 2008. Originally announced as a PSP disc, similar to the Metal Gear Solid: Digital Graphic Novel, the digital comic was released as a DVD-Video instead. A fully voiced version of the original Digital Graphic Novel is included as well.
http://www.idwpublishing.com/titles/metalgear.shtml
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