The World of Subways 1 line is going from New York beneath the Hudson-River to Newark. The original route is almost equally split in underground and above ground sections. Coming with excellent graphics this simulator also puts a lot of emphasis on original physics of the train and wagons.
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