ExploderWizard
Hero
Whereas I don't see how it's a railroad at all. It's a setup (or a plotline, if you will) - that is, a game-world element presented by the DM which is outside of the players' control. This is part of what I've been talking about with the expansion of the term - I don't know why it's helpful to include this generalized setup under the umbrella term "railroading."
-O
Any adventure that destroys the campaign world if the Pc's don't snap to is a railroad.
When I do run save the world scenarios it is at the end of a campaign and I make no effort to provide the illusion of free will.