Tom Clancy's Splinter Cell: Double Agent, Splinter Cell Wiki

There are two separate versions of Tom Clancy's Splinter Cell: Double Agent that were released by Ubisoft for sixth gen and seventh gen consoles: One version (referred to as Version 1) was developed by Ubisoft Milan and Ubisoft Shanghai (who worked on Splinter Cell: Pandora Tomorrow) and was released for Xbox 360, Windows, and PlayStation 3. The other version (referred to as Version 2) was developed by Ubisoft Montreal (who worked on Tom Clancy's Splinter Cell and Splinter Cell: Chaos Theory) an

Irving Lambert, Splinter Cell Wiki