We buy the game on the official Steam-Store. This is not an activation key or a CD/DVD. You can play and download the game conveniently and as usual via Steam after purchase and activation.
This is how you get the game
On a new Steam account
. We will activate the game on this account. You can then download and play the game through this Steam account. In most cases, you will be able to share the game with your main account, please contact Us or Steam-Support in that case to be sure, if you can share the game via "Family Sharing" with your main account.