Changing the language in depends largely on the platform you are using. Since the game is localized through external launchers or system settings, you won't find a direct "Change Language" toggle within the in-game main menu for full interface changes. PC (Steam)
Many players want the "authentic" experience: sleeping dogs definitive edition change language
If you want to change (e.g., to Chinese, Japanese, German) or if the in-game menu doesn't work: Sleeping Dogs: Definitive Edition Changing the language in