Russian release was uncensored and every other copy being censored (I'm not sure why this is the case). If you want a non-Russian copy to be uncensored however, the Enhanced Addon's what you're after.
The Enhanced Addon can work with the Steam version (a mod which uncensors, bug fixes, improves the game's atmosphere and was recommended by the GOG staff) ... but feel free to read this comment if you want -- this was copied straight off -3xA'Lu©κy post:
Download these 3 files:
* Moddb.com - main mod files
* Moddb.com - english files
* Int0thegame.blogspot.com.au - vfsTool
or here: Moddb.com
Install the game (no need to patch to 1.1 for a non-Russian game as they are prepatched reportedly), run the vfsTool, and unpack all the .vfs files in your game directory following this method I saw on the internet (if you don't do this I was told files don't unpack/get corrupted):
>select "Open" and choose a .vfs file
> click "save all" and choose your game folder as the save location
> wait until everything is extracted
> hit "Close"
> then select "Open" and choose the next .vfs file
Then extract both the main addon + the English pack to your game directory (overwriting everything).
After that, try to run the "BACKUP.BAT" file and if it doesn't work: don't worry, as this just backs up your files.
The only thing other thing I had to do to make my game not vanilla (i.e. intro videos actually appearing prior to the game's main menu screen, no blood, no mission names on loading screens, etc.) after this was to simply delete the original .vfs files in my Death to Spies folder. After that: the mod worked. Nowhere is this last instruction specified but you have to do this to get the mod to work -- at least for me.
*** IF YOU HAVE ISSUES GETTING TO THE MAIN MENU, DELETE THE 2 .avi FILES (intro videos that the mod installs) IN THE DEATH TO SPIES FOLDER. ***