Here you can buy the key Cities Skylines - Deep Focus Radio DLC (addition to Cities Skylines) at a bargain price. After purchase, you will immediately receive a key, activating which you will add DLC to the game Cities Skylines to your steam account.

Without the original Cities Skylines game on your account, you will not be able to activate the Deep Focus Radio DLC add-on.

https://store.steampowered.com/app/1065490/Cities_Skylines__Deep_Focus_Radio/

You can activate the key in any region.

Key activation instructions:
1. After purchase, you receive a unique key that you need to copy and enter into the Steam client.
2. Opens steam. We are looking for the button "Add game" in the lower left corner, then click on "Activate in steam"
3. In the appeared window, insert the format key - HHHHH-HHHHH-HHHHH
4. After activation, the game will appear in your library.