I am asking this because Outland is free until tonight on the Steam store and if you get it is permanent. However, due to internet restrictions, I can't download it right now. However, I managed to open Steam and click "Add Game" from the store and I then went to Outland's page and clicked "Install Now". Then it took me to the page where it said:
Thank you for purchasing Outland, it has been installed to your steam library
Then it said to click a link to install it, however, I don't want to currently. So if I just add it to my library is that enough to claim it or do I have to physically install it to my PC?