Sonic the Hedgehog 4 - Episode I
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Use your CD key on Steam to download Sonic the Hedgehog 4 - Episode I.
Sonic the Hedgehog 4 - Episode I
For Steam CD Keys, you must download (HERE), install the Steam software and create a new account. If you already have a Steam account, once you log in, click "Add a game" (located in the bottom left corner), and then "Activate a Product on Steam". After a few more clicks, you will be prompted to type in your CD Key. Thus, the game will be activated and automatically added to your account library.
