Senlis on 06 March 2009
You purchased the game on steam. Therefore, each computer you want to play it on, you will have to install Steam and then re-download the game. There may be a way to burn the installation files to a disk, but I don't know of it and you will still have to be logged into Steam before you can play it. Just make sure that any computer you install steam on does not start and auto-logon when Windows starts, because only one computer at a time can be logged on with your account.
