Do I get a Steam key?

[Bronze]

...if I purchase here? And how/when to use it if so?

[adiekmann]

...if I purchase here? And how/when to use it if so?

Yes, this can be a bit confusing if you've not done it before.

1. Look at the top of this page and click on the white-lettered link that says, "MY PAGE"
2. Login.
3. Scroll through your games and copy and paste the Steam code of the game/DLC that you're trying to unlock in Steam.

4. Then open your Library in Steam.
5. Click on the top left menu "Games," then under that "Activate a Product on Steam."
6. Paste your Steam Code from your MY PAGE list on this website...
7. ...and the rest should be obvious!

[Bronze]

Thank you!!!

[terminator]

A general tip, validate the Steam key quickly