Recognized as one of the best licenses in adventure gaming and lauded by the international press, Sherlock Holmes is back with an investigation that is sure to be the most horrifying of the series. In this great new adventure, the famous detective chases against the most threatening serial killer England has ever known - Jack the Ripper.
Open the Steam client, login and locate the Games tab on the top menu. Click this and then select “Activate a Product on Steam…”
Enter your unique code that's displayed on the 'Orders' page of CDKeys.com and follow the prompts to activate.
Your game is now viewable in the “Library” tab and is available to download/install when you’re ready. You can find additional support for the Steam client here: https://help.steampowered.com/en/wizard/HelpWithSteam