Once you have installed the Steam client, launch the client and enter your login credentials. When you are logged into your account, click the button in the bottom left corner that says "+ ADD A GAME…" to register the product key to your account.
In the pop-up window, select the "Activate a Product on Steam" option. This will open up a new window.
Follow the prompts, and paste or enter the numerical key you copied from your download page into the "Product Code" field.
Hit "NEXT>" and you will be taken to your library where you will be able to download and play your newly registered game!
From your LIBRARY tab, you can see all games registered to your Steam account. You can then select a game and it will bring up a splash page with a large INSTALL button you can click on to install your games. Once your games are installed, the Install button will change to a PLAY button!
11 Comments - Last post 17 minutes ago by ha14
1 Comments - Last post 41 minutes ago by AmanoTC
37 Comments - Last post 43 minutes ago by UltraMaster
7 Comments - Last post 44 minutes ago by FateOfOne
57 Comments - Last post 1 hour ago by GCTuba
46,902 Comments - Last post 1 hour ago by FranckCastle
612 Comments - Last post 1 hour ago by MeguminShiro
238 Comments - Last post 14 seconds ago by crunchysoup
0 Comments - Created 2 minutes ago by Ekaros
8,098 Comments - Last post 4 minutes ago by Peiperissimus
0 Comments - Created 6 minutes ago by mourinhos86
173 Comments - Last post 7 minutes ago by Prosac
1,632 Comments - Last post 8 minutes ago by AmanoTC
126 Comments - Last post 12 minutes ago by 538UL84