You are Morgan Sinclair, Secret Service agent. The Dark Templars are attempting to secure 4 artifacts, collectively known as "Satan's Keys", to bring upon Armageddon. You must stop them by travelling back in time to locate the artifacts before they fall into the wrong hands...
The Messenger is an adventure game feature 360 panorama views.
Zarf's Non-Review (A review of The Messenger by Andrew Plotkin, which due to frustrations with the game and its design is largely a diatribe, such to the point that it's deemed a non-review by its author (November, 2001).)
Kasey Chang (4608) added The Messenger (Windows) on Feb 22, 2001