Possible Duplicate:
Is there any way to start Steam in offline mode without logging in first?
Yesterday I was at an airport and had no wifi, I wanted to play one of my steam games. Unfortunately, Steam games won't run without Steam running first, some don't even have .exe's.
So I start up Steam I choose 'Offline Mode' , but it pops up an error message saying that it couldn't connect to the Steam Network.
What's going on?
What exactly is 'Offline Mode' for if it won't start Steam without internet?
(I am sure that my Steam client was fully updated)