For those like myself that have preordered on steam.
Go to your SR4 page in the library and click on the preload button.
Go to your SR4 page in the library and click on the preload button.
Not entirely certain, but I'd say it means you download like 99% of the game except for the critical launch files, saving you time at launch day so you can play almost the second it releases on steam.
Try to download at night time. I mean after midnight.Fuck yes, because with my Internet speed and Steam's traffic on this, I'm going to need every precious second to get it before release lol