You can play and download the game conveniently and as usual via Steam after purchase and activation
You have two ways to play the game
1.You will get a new fresh steam account with the game
I will send steam account username and password!
I will send email account for this steam account
email address and email password
And after that you have full control of account!
You can play game online and offline
You can play game in this account or your
main account through Family sharing!
you will be able to share the game with your main account, please contact Steam-Support in that case to be sure, you can share the game via "Family Sharing" with your main account.
When you buy this account it only yours!
If you will you can change email and Password!