Steam tells the game’s launcher which localization folder to read from. In most cases, the game will now boot in the selected language.
Close the window and allow Steam to download any necessary localization files. Shank 2 Change Language
If you are using the GOG version or if the Steam method doesn't stick, you can manually edit the game's configuration files. Steam tells the game’s launcher which localization folder
To change the language in , you primarily use the settings of your game platform (like Steam) since the game itself often lacks an extensive in-game language selector. While the official release is primarily in Shank 2 Change Language