Originally Posted by brucethemoose
Actually I may be wrong... There is a separate origin installer folder.
It probably varies from game to game.
In Origin's settings, there's a place to define where games are installed. By default in Windows 7, it's C:\Programs Files (x86)\Origin Games. This can be changed to any folder you want with any name you want. This option is Origin > Application Settings > Advanced > "Downloaded Games". For me, the Game Installers folder remained empty after installing Crysis 3. Instead, the "installer" for Crysis 3 is a folder in the Crysis 3 folder called "_Installer". It doesn't contain the setup.exe or anything like that, but it's a bunch of small files and some folders that contain other files that seem to be what Origin looks for before it attempts to download anything for Crysis 3. It seems to me that if that folder exists ("_Installer") in the Crysis 3 installation folder, then it checks to see if every file and folder is present that makes up the Crysis 3 installation. If so, then it doesn't download anything, but instead it "installs" Crysis 3 into Windows by writing the necessary Registry keys and perhaps maybe generating a needed file or two. Oh, and you also have your Crysis 3 System.cfg file overwritten with the default one. The C:\Users\you\Saved Games\Crysis 3 folder does not get overwritten.
That's as much as I know. However, the fact that Origin has a separate folder for "Game Installers" tells me that you're right: it depends on the game.