Answer ID 4479
On the GeForce NOW app you select the Manage Steam option from your username. Once you are logged into Steam, you are free to install any game you want. However, games that are not on our list of supported titles will take 10-20 minutes to install, your game progress will not be saved, there will be no optimal playable settings, and you will need to reinstall the games the next time you run Steam. All games included in our list of supported titles, which you can view in the GeForce NOW app, have optimal playable settings, support game saves and will express install, so you can play them in seconds.