Are there any offline games left?

One of my readers wrote me with a question about playing games offline, and as I am very much online all the time I'm not in the best position to answer it. So I'm passing the question on, and maybe you can help. The question is from somebody deployed overseas without commercial internet access: What good strategy and roleplaying games are there which do not require any internet connection, neither for installation, nor for playing? Thus the game needs to be available "in a box", and not requir

World of Warkraft...