There are two separate versions of Tom Clancy's Splinter Cell: Double Agent that were released by Ubisoft for 6th gen and seventh gen consoles:
- One version (referred to as Version 1) was developed by 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) and was released for Xbox, PlayStation 2, GameCube, and Wii.
Both versions share a similar premise and general plot, but they have different storylines, plot twists and levels. Even the levels that are set in similar world locations have completely different level designs. Both versions of the game share the same background music and a few cutscenes.