Might depend on where you are, I live in the US and just installed S.T.A.L.K.E.R.It certainly does do a disc check in SP for Stalker...
Unlike most games it never asked for the CD key and when I ran it to play a single player game, it never asked for the disc which was NOT in the drive.
I suspect that the CD key is only needed for on-line play which I'm not interested in. But not checking for the disc in very unusual, could they have forgotten to add the disc check to it when they released the 1.01 (or whatever the current version is) patch?
I'm not going to complain!
Last edited: